P: Export As error: "An unknown error occurred"

Thank you! generator_latest below:

Log file created on Wed Dec 23 2020 13:04:34 GMT-0800 (Pacific Standard Time)

[info:core 13:04:34.308 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\generator.js:114:22] Launching with config:
{}
[info:core 13:04:34.309 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\generator.js:116:26] provided PS information:
 version 22.0
 pathC:\Program Files\Adobe\Adobe Photoshop 2021

[info:core 13:04:34.324 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\generator.js:237:30] Detected Photoshop version: 22.0.0
[warning:app 13:04:34.345 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\app.js:234:29] No viable plugins were found in 'C:\Program Files\Adobe\Adobe Photoshop 2021\Plug-ins\Generator'
[info:core 13:04:34.349 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\generator.js:1926:26] Loading plugin: generator-assets (v2.9.13) from: C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\assets.generate
[warning:core 13:04:34.754 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\generator.js:915:26] WARNING the imageChanged event is expensive, please consider NOT listening to it
[info:core 13:04:34.758 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\generator.js:1942:26] Plugin loaded: generator-assets
[info:core 13:04:34.762 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\generator.js:1926:26] Loading plugin: crema (v3.2.12) from: C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate
[info:core 13:04:35.488 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\generator.js:1942:26] Plugin loaded: crema
[warning:core 13:04:43.415 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\generator.js:915:26] WARNING the imageChanged event is expensive, please consider NOT listening to it
[warning:crema 13:04:43.429 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\node_modules\shared\LogUtils\index.js:61:21] user settings file could not be created
[warning:core 13:04:44.441 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\generator.js:133:30] Photoshop error { id: 15,
  body: 'Error 1302: No such element\rLine: 8\r->  var desc = app.getCustomOptions(params.key);' }
[warning:core 13:04:44.447 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\generator.js:378:26] Error in JSX file with params ./jsx/getCustomOptions.jsx { key: 'crema' } Error 1302: No such element Line: 8 ->  var desc = app.getCustomOptions(params.key);
[info:crema 13:04:56.524 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:349:17] Accepted websocket connection with ID 0
[info:crema 13:04:56.535 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:307:17] initial message recieved
[info:crema 13:04:56.549 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:165:21] received command: docinfo
[info:crema 13:04:57.145 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:165:21] received command: generatePreview
[info:core 13:05:02.801 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\photoshop.js:488:26] 33ms to receive 19941.9 kB (604299.7 kB/s)
[info:core 13:05:02.881 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\convert.js:231:20] Using Flite for image encoding
[info:crema 13:05:37.382 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:165:21] received command: generatePreview
[info:core 13:05:40.841 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\photoshop.js:488:26] 31ms to receive 23437.5 kB (756049.5 kB/s)
[info:core 13:05:40.850 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\convert.js:231:20] Using Flite for image encoding
[info:crema 13:05:50.245 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:165:21] received command: exportComponents
[info:core 13:05:53.512 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\photoshop.js:488:26] 26ms to receive 23437.5 kB (901443.7 kB/s)
[info:core 13:05:53.521 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\convert.js:231:20] Using Flite for image encoding
[info:crema 13:05:53.769 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:165:21] received command: setDocSettings
[info:crema 13:05:53.811 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:362:21] WebSocket connection with ID 0 closed
[info:crema 13:08:06.024 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:349:17] Accepted websocket connection with ID 1
[info:crema 13:08:06.030 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:307:17] initial message recieved
[info:crema 13:08:06.037 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:165:21] received command: docinfo
[info:crema 13:08:06.681 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:165:21] received command: generatePreview
[info:core 13:08:09.847 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\photoshop.js:488:26] 29ms to receive 23437.5 kB (808190.9 kB/s)
[info:core 13:08:09.854 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\convert.js:231:20] Using Flite for image encoding
[info:crema 13:08:16.496 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:165:21] received command: exportComponents
[info:core 13:08:19.632 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\photoshop.js:488:26] 23ms to receive 23437.5 kB (1019023.3 kB/s)
[info:core 13:08:19.640 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\convert.js:231:20] Using Flite for image encoding
[info:crema 13:08:19.906 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:165:21] received command: setDocSettings
[info:crema 13:08:19.938 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:362:21] WebSocket connection with ID 1 closed
[info:crema 13:09:12.811 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:349:17] Accepted websocket connection with ID 2
[info:crema 13:09:12.832 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:307:17] initial message recieved
[info:crema 13:09:12.840 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:165:21] received command: docinfo
[info:crema 13:09:13.475 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:165:21] received command: generatePreview
[info:core 13:09:16.756 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\photoshop.js:488:26] 29ms to receive 23437.5 kB (808190.9 kB/s)
[info:core 13:09:16.764 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\convert.js:231:20] Using Flite for image encoding
[info:crema 13:09:22.227 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:362:21] WebSocket connection with ID 2 closed
[warning:generator-assets 13:11:07.089 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\assets.generate\lib\dom\layer.js:554:34] Unhandled property in raw change: transform { xx: 0.93006, xy: 0, yx: 0, yy: 0.93006, tx: 53.8458, ty: 2.78409 }
[warning:generator-assets 13:11:07.093 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\assets.generate\lib\dom\layer.js:554:34] Unhandled property in raw change: transform { xx: 0.93006,
  xy: 0,
  yx: 0,
  yy: 0.93006,
  tx: 14.5129,
  ty: 0.617463 }
[info:crema 13:11:12.737 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:349:17] Accepted websocket connection with ID 3
[info:crema 13:11:12.752 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:307:17] initial message recieved
[info:crema 13:11:12.758 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:165:21] received command: docinfo
[info:crema 13:11:13.403 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:165:21] received command: generatePreview
[info:core 13:11:16.798 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\photoshop.js:488:26] 40ms to receive 23437.5 kB (585938.4 kB/s)
[info:core 13:11:16.805 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\convert.js:231:20] Using Flite for image encoding
[info:crema 13:11:25.650 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:165:21] received command: exportComponents
[info:core 13:11:28.983 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\photoshop.js:488:26] 28ms to receive 23437.5 kB (837054.8 kB/s)
[info:core 13:11:28.991 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\convert.js:231:20] Using Flite for image encoding
[info:crema 13:11:29.239 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:165:21] received command: setDocSettings
[info:crema 13:11:29.285 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\Generator\crema.generate\main.js:362:21] WebSocket connection with ID 3 closed
[warning:core 13:18:51.813 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\generator.js:133:30] Photoshop error Pipe read error: Error: EPIPE: broken pipe, read
[info:core 13:18:51.818 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\generator.js:128:30] Photoshop connection closed
[info:core 13:18:51.822 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\lib\generator.js:128:30] Photoshop connection closed
[error:app 13:18:52.829 C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Generator-builtin\app.js:141:17] Exiting with code 0: Generator close event

All known issues. Support asked me to rollback to version 22.1

Could you check your hidden item is checked? File Explorer> View > Hidden Items?

Hi Kyoko,

Thanks for the reply. I can't get to the info following that path. I tried going to my username but I don't have an AppData folder on there. However there are a bunch of default users (that I think are associated with Photoshop or Lightroom), that I don't have permissions to get access to. This is on a personal laptop, so I'm not sure why I don't have permissions for that but it might be related to a laptop crash I had on my previous laptop. How should I proceed?

Thanks Laurie for uploading your system info, appreciate this. Could you also upload your generator_latest.txt log as well? You can find it from here:
C:\Users\username\AppData\Roaming\Adobe\Adobe Photoshop 2021\Logs\Generator

Hi, I am also having this problem since yesterday (December 22, 2020). I cannot export at all and sometimes I can't save. When exporting I get the unknown error, and when saving I am getting a program error box appear.

I have followed all advice on this thread and still having problems. I de-selected the "Use graphics processor" and selected "enable optimized Export as".

System info: 

Adobe Photoshop Version: 22.1.0 20201125.r.94 2020/11/25: 4b16c876033  x64
Number of Launches: 97
Operating System: Windows 10 64-bit
Version: 10 or greater 10.0.19041.662
System architecture: Intel CPU Family:6, Model:5, Stepping:2 with MMX, SSE Integer, SSE FP, SSE2, SSE3, SSE4.1, SSE4.2, AVX, AVX2, HyperThreading
Physical processor count: 6
Logical processor count: 12
Processor speed: 2592 MHz
Built-in memory: 16126 MB
Free memory: 10326 MB
Memory available to Photoshop: 14752 MB
Memory used by Photoshop: 70 %
ACP.local Status:
 - SDK Version: 1.34.1
 - Core Sync Status: Reachable and compatible
 - Core Sync Running: 4.3.71.1
 - Min Core Sync Required: 4.3.28.24
ACPL Cache Config: 
 - Time to Live: 5184000 seconds
 - Max Size: 20480 MB
 - Purge Percentage: 50%
 - Threshold Percentage: 85%
 - Purge Interval: 60 seconds
Live Edit Client SDK Version: 3.77.11
Native GPU: Disabled.
Manta Canvas: Enabled.
Alias Layers: Disabled.
Modifier Palette: Enabled.
Highbeam: Enabled.
Image tile size: 1024K
Image cache levels: 4
Font Preview: Extra Large
TextComposer: Latin
"2.1"
glgpu[0].IsIntegratedGLGPU=0
glgpu[0].GLMemoryMB=3964
glgpu[0].GLName="GeForce GTX 1650 Ti/PCIe/SSE2"
glgpu[0].GLVendor="NVIDIA"
glgpu[0].GLDriverVersion="27.21.14.5241"
glgpu[0].GLDriver="C:\Windows\System32\DriverStore\FileRepository\nvdm.inf_amd64_090da5d9229c44ea\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvdm.inf_amd64_090da5d9229c44ea\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvdm.inf_amd64_090da5d9229c44ea\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvdm.inf_amd64_090da5d9229c44ea\nvldumdx.dll"
glgpu[0].GLDriverDate="20200923000000.000000-000"
glgpu[0].GLRenderer="GeForce GTX 1650 Ti/PCIe/SSE2"
glgpu[0].HasGLNPOTSupport=1
glgpu[0].CanCompileProgramGLSL=1
glgpu[0].GLFrameBufferOK=1
clgpu[0].CLPlatformVersion="OpenCL 1.2 CUDA"
clgpu[0].CLDeviceVersion="1.2"
clgpu[0].IsIntegratedCLGPU=0
clgpu[0].CLMemoryMB=4294
clgpu[0].CLName="GeForce GTX 1650 Ti"
clgpu[0].CLVendor="NVIDIA"
clgpu[0].CLBandwidth=1.680000e+11
clgpu[0].CLCompute=1273.645224
clgpu[0].CLRawDeviceName=GeForce GTX 1650 Ti
clgpu[0].CLRawDeviceVendor=NVIDIA Corporation
clgpu[0].CLRawPlatformName=NVIDIA CUDA
clgpu[0].CLRawPlatformVendor=NVIDIA Corporation
nativegpu[0].NativeName="8085:NVIDIA GeForce GTX 1650 Ti"
clgpu[1].CLPlatformVersion="OpenCL 2.1 "
clgpu[1].CLDeviceVersion="2.1"
clgpu[1].IsIntegratedCLGPU=1
clgpu[1].CLMemoryMB=6763
clgpu[1].CLName="Intel(R) UHD Graphics"
clgpu[1].CLVendor="INTEL"
clgpu[1].CLBandwidth=1.800000e+10
clgpu[1].CLCompute=189.826487
clgpu[1].CLRawDeviceName=Intel(R) UHD Graphics
clgpu[1].CLRawDeviceVendor=Intel(R) Corporation
clgpu[1].CLRawPlatformName=Intel(R) OpenCL HD Graphics
clgpu[1].CLRawPlatformVendor=Intel(R) Corporation
nativegpu[1].NativeName="39876:Intel(R) UHD Graphics"
License Type: Subscription
Serial number: 96040676178729989017
GUIDBucket:Composite Core (enable_composite_core): onComposite Core GPU (comp_core_gpu): offComposite Core Threads (comp_core_threads): offComposite Core UI (comp_core_ui): offDocument Graph (enable_doc_graph): off
Application folder: C:\Program Files\Adobe\Adobe Photoshop 2021\
Temporary file path: C:\Users\lauri\AppData\Local\Temp\
Photoshop scratch has async I/O enabled
Scratch volume(s):
  Startup, 459.4G, 268.3G free
Required Plugins folder: C:\Program Files\Adobe\Adobe Photoshop 2021\Required\Plug-ins\
Primary Plugins folder: C:\Program Files\Adobe\Adobe Photoshop 2021\Plug-ins\

Installed components:
   A3DLIBS.dll   A3DLIB Dynamic Link Library   9.2.0.112   
   ACE.dll   ACE 2020/10/13-07:15:59   79.624517   79.624517
   AdbePM.dll   PatchMatch 2020/09/29:17:00:06   1.624362   1.624362
   AdobeLinguistic.dll   Adobe Linguisitc Library   developer.633ca06620e3b28a3ccee5d61e3e97bd84fe66b3   
   AdobeOwl.dll   Adobe Owl   5.5.0   
   AdobePDFL.dll   PDFL 2020/08/08-01:12:48   79.395135   79.395135
   AdobePDFSettings.dll   Adobe PDFSettings   1.07   
   AdobePIP.dll   Adobe Product Improvement Program   8.1.0.68.49183   
   AdobeSVGAGM.dll   AdobeSVGAGM   79.623146   79.623146
   AdobeXMP.dll   Adobe XMP Core 2020/10/15-17:48:32   79.164527   79.164527
   AdobeXMPFiles.dll   Adobe XMP Files 2020/10/15-17:48:32   79.164527   79.164527
   AdobeXMPScript.dll   Adobe XMP Script 2020/10/15-17:48:32   79.164527   79.164527
   adobe_caps.dll   Adobe CAPS   10,0,0,6   
   AGM.dll   AGM 2020/10/13-07:15:59   79.624517   79.624517
   AID.dll   AID DLL   1.0.0.12   
   AIDE.dll   AIDE 2020/09/03-11:27:35   79.623792   79.623792
   ARE.dll   ARE 2020/10/13-07:15:59   79.624517   79.624517
   AXE8SharedExpat.dll   AXE8SharedExpat 2020/08/01-01:08:32   79.622927   79.622927
   AXEDOMCore.dll   AXEDOMCore 2020/08/01-01:08:32   79.622927   79.622927
   Bib.dll   BIB 2020/10/13-07:15:59   79.624517   79.624517
   BIBUtils.dll   BIBUtils 2020/10/13-07:15:59   79.624517   79.624517
   boost_date_time.dll   photoshopdva   14.0.0   
   boost_filesystem.dll   photoshopdva   14.0.0   
   boost_program_options.dll   photoshopdva   14.0.0   
   boost_regex.dll   photoshopdva   14.0.0   
   boost_system.dll   photoshopdva   14.0.0   
   boost_threads.dll   photoshopdva   14.0.0   
   CoolType.dll   CoolType 2020/10/13-07:15:59   79.624517   79.624517
   CRClient.dll   Adobe Crash Reporter Client DLL   3.0.2.0   
   DirectML.dll   DirectML Redistributable Library   1.0.200514-0504.1.redist-dml-2.1.0.dcd3712   
   dnssd.dll   Bonjour   3,0,0,2   
   dvaaccelerate.dll   photoshopdva   14.0.0   
   dvaappsupport.dll   photoshopdva   14.0.0   
   dvaaudiodevice.dll   photoshopdva   14.0.0   
   dvacore.dll   photoshopdva   14.0.0   
   dvacrashhandler.dll   Adobe Audition CC 2017   10.0.0   
   dvamarshal.dll   photoshopdva   14.0.0   
   dvamediatypes.dll   photoshopdva   14.0.0   
   dvametadata.dll   photoshopdva   14.0.0   
   dvametadataapi.dll   photoshopdva   14.0.0   
   dvametadataui.dll   photoshopdva   14.0.0   
   dvanet.dll   photoshopdva   14.0.0   
   dvaplayer.dll   photoshopdva   14.0.0   
   dvascripting.dll   photoshopdva   14.0.0   
   dvatransport.dll   photoshopdva   14.0.0   
   dvaui.dll   photoshopdva   14.0.0   
   dvaunittesting.dll   photoshopdva   14.0.0   
   dvavulcansupport.dll   photoshopdva   14.0.0   
   dynamic-torqnative.dll   Unified Extensibility Platform   uxp-4.1.4.7   
   dynamiclink.dll   photoshopdva   14.0.0   
   ExtendScript.dll   ExtendScript 2019/07/29-10:07:31   82.2   82.2
   icucnv66.dll   International Components for Unicode    Build dev.1a8973dfe99250a665e321702b3d76963c65bdfe   
   icudt66.dll   International Components for Unicode    Build dev.1a8973dfe99250a665e321702b3d76963c65bdfe   
   icuuc66.dll   International Components for Unicode    Build dev.1a8973dfe99250a665e321702b3d76963c65bdfe   
   igestep30.dll   IGES Reader   9.3.0.113   
   ippcc.dll   ippCC. Intel(R) Integrated Performance Primitives. Color Conversion.   2020.0.1 (r0x35c5ec66)   
   ippcck0.dll   ippCC. Intel(R) Integrated Performance Primitives. Color Conversion.   2020.0.1 (r0x35c5ec66)   
   ippccl9.dll   ippCC. Intel(R) Integrated Performance Primitives. Color Conversion.   2020.0.1 (r0x35c5ec66)   
   ippccy8.dll   ippCC. Intel(R) Integrated Performance Primitives. Color Conversion.   2020.0.1 (r0x35c5ec66)   
   ippcore.dll   core. Intel(R) Integrated Performance Primitives. Core Library.   2020.0.1 (r0x35c5ec66)   
   ippcv.dll   ippCV. Intel(R) Integrated Performance Primitives. Computer Vision.   2020.0.1 (r0x35c5ec66)   
   ippcvk0.dll   ippCV. Intel(R) Integrated Performance Primitives. Computer Vision.   2020.0.1 (r0x35c5ec66)   
   ippcvl9.dll   ippCV. Intel(R) Integrated Performance Primitives. Computer Vision.   2020.0.1 (r0x35c5ec66)   
   ippcvy8.dll   ippCV. Intel(R) Integrated Performance Primitives. Computer Vision.   2020.0.1 (r0x35c5ec66)   
   ippi.dll   ippIP. Intel(R) Integrated Performance Primitives. Image Processing.   2020.0.1 (r0x35c5ec66)   
   ippik0.dll   ippIP. Intel(R) Integrated Performance Primitives. Image Processing.   2020.0.1 (r0x35c5ec66)   
   ippil9.dll   ippIP. Intel(R) Integrated Performance Primitives. Image Processing.   2020.0.1 (r0x35c5ec66)   
   ippiy8.dll   ippIP. Intel(R) Integrated Performance Primitives. Image Processing.   2020.0.1 (r0x35c5ec66)   
   ipps.dll   ippSP. Intel(R) Integrated Performance Primitives. Signal Processing.   2020.0.1 (r0x35c5ec66)   
   ippsk0.dll   ippSP. Intel(R) Integrated Performance Primitives. Signal Processing.   2020.0.1 (r0x35c5ec66)   
   ippsl9.dll   ippSP. Intel(R) Integrated Performance Primitives. Signal Processing.   2020.0.1 (r0x35c5ec66)   
   ippsy8.dll   ippSP. Intel(R) Integrated Performance Primitives. Signal Processing.   2020.0.1 (r0x35c5ec66)   
   ippvm.dll   ippVM. Intel(R) Integrated Performance Primitives. Vector Math.   2020.0.1 (r0x35c5ec66)   
   ippvmk0.dll   ippVM. Intel(R) Integrated Performance Primitives. Vector Math.   2020.0.1 (r0x35c5ec66)   
   ippvml9.dll   ippVM. Intel(R) Integrated Performance Primitives. Vector Math.   2020.0.1 (r0x35c5ec66)   
   ippvmy8.dll   ippVM. Intel(R) Integrated Performance Primitives. Vector Math.   2020.0.1 (r0x35c5ec66)   
   JP2KLib.dll   JP2KLib 2020/06/29-16:59:49   79.275695   79.275695
   libifcoremd.dll   Intel(r) Visual Fortran Compiler   10.0 (Update A)   
   libiomp5md.dll   Intel(R) OpenMP* Runtime Library   5.0   
   libmmd.dll   Intel(R) C/C++/Fortran Compiler   Mainline   
   libzip.dll   photoshopdva   14.0.0   
   LogSession.dll   LogSession   8.1.0.68.49183   
   mediacoreif.dll   photoshopdva   14.0.0   
   Microsoft.AI.MachineLearning.dll   Microsoft® Windows® Operating System   1.3.20200515.1.eb5da13   
   MPS.dll   MPS 2020/09/18-01:10:24   79.624152   79.624152
   onnxruntime.dll   Microsoft® Windows® Operating System   1.3.20200515.1.eb5da13   
   opencv_world440.dll   OpenCV library   4.4.0   
   Photoshop.dll   Adobe Photoshop 2021   22.1   
   Plugin.dll   Adobe Photoshop 2021   22.1   
   PlugPlugExternalObject.dll   Adobe(R) CEP PlugPlugExternalObject Standard Dll (64 bit)   10.0.0   
   PlugPlugOwl.dll   Adobe(R) CSXS PlugPlugOwl Standard Dll (64 bit)   10.0.0.80   
   PSCloud.dll                                                   1.0.0.1   
   PSViews.dll   Adobe Photoshop 2021   22.1   
   ScCore.dll   ScCore 2019/07/29-10:07:31   82.2   82.2
   SVGRE.dll   SVGRE   79.623146   79.623146
   svml_dispmd.dll   Intel(R) C/C++/Fortran Compiler   Mainline   
   tbb.dll   Intel(R) Threading Building Blocks for Windows   2020, 2, 2020, 0311   
   tbbmalloc.dll   Intel(R) Threading Building Blocks for Windows   2020, 2, 2020, 0311   
   TfFontMgr.dll   FontMgr   9.3.0.113   
   TfKernel.dll   Kernel   9.3.0.113   
   TFKGEOM.dll   Kernel Geom   9.3.0.113   
   TFUGEOM.dll   Adobe, UGeom©   9.3.0.113   
   utest.dll   photoshopdva   14.0.0   
   VulcanControl.dll   Vulcan Application Control Library   6.6.0.000   
   VulcanMessage5.dll   Vulcan Message Library   6.6.0.000   
   WinRTSupport.dll   Adobe Photoshop Windows RT Support   21.0.0.0   
   WRServices.dll   WRServices    Build 16.0.0.4539038   16.0.0.4539038
   wu3d.dll   U3D Writer   9.3.0.113   
   Unified Extensibility Platform  uxp-4.1.4.7

Required plugins:

   Accented Edges 22.1 - from the file “Filter Gallery.8bf”
   Adaptive Wide Angle 22.1 - from the file “Adaptive Wide Angle.8bf”
   Angled Strokes 22.1 - from the file “Filter Gallery.8bf”
   Average 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “Average.8bf”
   Bas Relief 22.1 - from the file “Filter Gallery.8bf”
   BMP 22.1 - from the file “Standard MultiPlugin.8bf”
   Camera Raw 13.1 - from the file “Camera Raw.8bi”
   Camera Raw Filter 13.1 - from the file “Camera Raw.8bi”
   Chalk && Charcoal 22.1 - from the file “Filter Gallery.8bf”
   Charcoal 22.1 - from the file “Filter Gallery.8bf”
   Chrome 22.1 - from the file “Filter Gallery.8bf”
   Cineon 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “Cineon.8bi”
   Clouds 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “Clouds.8bf”
   Color Halftone 22.1 - from the file “Standard MultiPlugin.8bf”
   Colored Pencil 22.1 - from the file “Filter Gallery.8bf”
   Conté Crayon 22.1 - from the file “Filter Gallery.8bf”
   Craquelure 22.1 - from the file “Filter Gallery.8bf”
   Crop and Straighten Photos 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “CropPhotosAuto.8li”
   Crop and Straighten Photos Filter 22.1 - from the file “Standard MultiPlugin.8bf”
   Crosshatch 22.1 - from the file “Filter Gallery.8bf”
   Crystallize 22.1 - from the file “Standard MultiPlugin.8bf”
   Cutout 22.1 - from the file “Filter Gallery.8bf”
   Dark Strokes 22.1 - from the file “Filter Gallery.8bf”
   De-Interlace 22.1 - from the file “Standard MultiPlugin.8bf”
   Dicom 22.1 - from the file “Dicom.8bi”
   Difference Clouds 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “Clouds.8bf”
   Diffuse Glow 22.1 - from the file “Filter Gallery.8bf”
   Displace 22.1 - from the file “Standard MultiPlugin.8bf”
   Dry Brush 22.1 - from the file “Filter Gallery.8bf”
   Eazel Acquire 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “EazelAcquire.8ba”
   Entropy 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “statistics.8ba”
   Export Color Lookup Tables 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “Export3DLUT.8be”
   Extrude 22.1 - from the file “Standard MultiPlugin.8bf”
   FastCore Routines 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “FastCore.8bx”
   Fibers 22.1 - from the file “Standard MultiPlugin.8bf”
   Film Grain 22.1 - from the file “Filter Gallery.8bf”
   Filter Gallery 22.1 - from the file “Filter Gallery.8bf”
   Fresco 22.1 - from the file “Filter Gallery.8bf”
   Glass 22.1 - from the file “Filter Gallery.8bf”
   Glowing Edges 22.1 - from the file “Filter Gallery.8bf”
   Grain 22.1 - from the file “Filter Gallery.8bf”
   Graphic Pen 22.1 - from the file “Filter Gallery.8bf”
   Halftone Pattern 22.1 - from the file “Filter Gallery.8bf”
   Halide Bottlenecks 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “HalideBottlenecks.8bx”
   HDRMergeUI 22.1 - from the file “HDRMergeUI.8bf”
   HSB/HSL 22.1 - from the file “Standard MultiPlugin.8bf”
   IFF Format 22.1 - from the file “Standard MultiPlugin.8bf”
   IGES 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “U3D.8bi”
   Ink Outlines 22.1 - from the file “Filter Gallery.8bf”
   JPEG 2000 22.1 - from the file “JPEG2000.8bi”
   Kurtosis 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “statistics.8ba”
   Lens Blur 22.1 - from the file “Lens Blur.8bf”
   Lens Correction 22.1 - from the file “Lens Correction.8bf”
   Lens Flare 22.1 - from the file “Standard MultiPlugin.8bf”
   Liquify 22.1 - from the file “Liquify.8bf”
   Matlab Operation 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “ChannelPort.8bf”
   Maximum 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “statistics.8ba”
   Mean 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “statistics.8ba”
   Measurement Core 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “MeasurementCore.8me”
   Median 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “statistics.8ba”
   Mezzotint 22.1 - from the file “Standard MultiPlugin.8bf”
   Minimum 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “statistics.8ba”
   MMXCore Routines 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “MMXCore.8bx”
   Mosaic Tiles 22.1 - from the file “Filter Gallery.8bf”
   Multiprocessor Support 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “MultiProcessor Support.8bx”
   Neon Glow 22.1 - from the file “Filter Gallery.8bf”
   Note Paper 22.1 - from the file “Filter Gallery.8bf”
   NTSC Colors 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “NTSC Colors.8bf”
   Ocean Ripple 22.1 - from the file “Filter Gallery.8bf”
   OpenEXR 22.1 - from the file “Standard MultiPlugin.8bf”
   Paint Daubs 22.1 - from the file “Filter Gallery.8bf”
   Palette Knife 22.1 - from the file “Filter Gallery.8bf”
   Patchwork 22.1 - from the file “Filter Gallery.8bf”
   Paths to Illustrator 22.1 - from the file “Standard MultiPlugin.8bf”
   PCX 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “PCX.8bi”
   Photocopy 22.1 - from the file “Filter Gallery.8bf”
   Picture Package Filter 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “ChannelPort.8bf”
   Pinch 22.1 - from the file “Standard MultiPlugin.8bf”
   Pixar 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “Pixar.8bi”
   Plaster 22.1 - from the file “Filter Gallery.8bf”
   Plastic Wrap 22.1 - from the file “Filter Gallery.8bf”
   Pointillize 22.1 - from the file “Standard MultiPlugin.8bf”
   Polar Coordinates 22.1 - from the file “Standard MultiPlugin.8bf”
   Portable Bit Map 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “PBM.8bi”
   Poster Edges 22.1 - from the file “Filter Gallery.8bf”
   PRC 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “U3D.8bi”
   Radial Blur 22.1 - from the file “Standard MultiPlugin.8bf”
   Radiance 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “Radiance.8bi”
   Range 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “statistics.8ba”
   Render Color Lookup Grid 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “Export3DLUT.8be”
   Reticulation 22.1 - from the file “Filter Gallery.8bf”
   Ripple 22.1 - from the file “Standard MultiPlugin.8bf”
   Rough Pastels 22.1 - from the file “Filter Gallery.8bf”
   Save for Web 22.1 - from the file “Save for Web.8be”
   ScriptingSupport 22.1 - from the file “ScriptingSupport.8li”
   Shake Reduction 22.1 - from the file “Shake Reduction.8bf”
   Shear 22.1 - from the file “Standard MultiPlugin.8bf”
   Skewness 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “statistics.8ba”
   Smart Blur 22.1 - from the file “Standard MultiPlugin.8bf”
   Smudge Stick 22.1 - from the file “Filter Gallery.8bf”
   Solarize 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “Solarize.8bf”
   Spaces 22.1 - from the file “Spaces.8li”
   Spatter 22.1 - from the file “Filter Gallery.8bf”
   Spherize 22.1 - from the file “Standard MultiPlugin.8bf”
   Sponge 22.1 - from the file “Filter Gallery.8bf”
   Sprayed Strokes 22.1 - from the file “Filter Gallery.8bf”
   Stained Glass 22.1 - from the file “Filter Gallery.8bf”
   Stamp 22.1 - from the file “Filter Gallery.8bf”
   Standard Deviation 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “statistics.8ba”
   Sumi-e 22.1 - from the file “Filter Gallery.8bf”
   Summation 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “statistics.8ba”
   Targa 22.1 - from the file “Standard MultiPlugin.8bf”
   Texturizer 22.1 - from the file “Filter Gallery.8bf”
   Tiles 22.1 - from the file “Standard MultiPlugin.8bf”
   Torn Edges 22.1 - from the file “Filter Gallery.8bf”
   Twirl 22.1 - from the file “Standard MultiPlugin.8bf”
   U3D 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “U3D.8bi”
   Underpainting 22.1 - from the file “Filter Gallery.8bf”
   Vanishing Point 22.1 - from the file “VanishingPoint.8bf”
   Variance 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “statistics.8ba”
   Water Paper 22.1 - from the file “Filter Gallery.8bf”
   Watercolor 22.1 - from the file “Filter Gallery.8bf”
   Wave 22.1 - from the file “Standard MultiPlugin.8bf”
   WIA Support 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “WIASupport.8li”
   Wind 22.1 - from the file “Standard MultiPlugin.8bf”
   Wireless Bitmap 22.1 (20201125.r.94 2020/11/25: 4b16c876033) - from the file “WBMP.8bi”
   ZigZag 22.1 - from the file “Standard MultiPlugin.8bf”

Optional and third party plugins: NONE

Duplicate and Disabled plugins: NONE

Plugins that failed to load: NONE

Unified Extensibility Platform - Extensions:

   Home Screen (Loaded) 3.8.0.28 - from the file "C:\Program Files\Common Files\Adobe/UXP/Extensions\com.adobe.ccx.start-3.8.0\"
CDO: 1.76.10
        CmdN: 1.5.18
        CDP: 1.100.16
   Unified Panel (Loaded) 1.2.0.13 - from the file "C:\Program Files\Adobe\Adobe Photoshop 2021\Required\UXP/\com.adobe.unifiedpanel\"

   ccx-timeline (Prepared) 2.6.27.0 - from the file "C:\Program Files\Adobe\Adobe Photoshop 2021\Required\UXP/\com.adobe.ccx.timeline\"

   Neural Filters (Prepared) 1.3.1.0 - from the file "C:\Program Files\Adobe\Adobe Photoshop 2021\Required\UXP/\com.adobe.nfp.gallery\"

   Photoshop UXP Export-As (Loaded) 5.3.2.0 - from the file "C:\Program Files\Adobe\Adobe Photoshop 2021\Required\UXP/\com.adobe.photoshop.exportAs\"

   Photoshop Personalization (Loaded) 1.0.0.0 - from the file "C:\Program Files\Adobe\Adobe Photoshop 2021\Required\UXP/\com.adobe.photoshop.personalization\"

   Plugins Panel (Prepared) 1.1.0.0 - from the file "C:\Program Files\Adobe\Adobe Photoshop 2021\Required\UXP/\com.adobe.pluginspanel\"

Extensions:

   Libraries  1.0.0 - from the file “C:\Program Files\Common Files\Adobe\CEP\extensions\CC_LIBRARIES_PANEL_EXTENSION_3_9_288\index.html”
   New Document  3.4.0 - from the file “C:\Program Files (x86)\Common Files\Adobe\CEP\extensions\com.adobe.ccx.fnft-3.4.0\fnft.html?v=3.4.0.16”
   com.adobe.inapp.typekit.purchase  1.0.0 - from the file “C:\Program Files\Common Files\Adobe\CEP\extensions\CC_LIBRARIES_PANEL_EXTENSION_3_9_288\purchaseTypekit.html”
   Home  2.15.0 - from the file “C:\Program Files (x86)\Common Files\Adobe\CEP\extensions\com.adobe.ccx.start-2.15.0\index.html?v=2.15.0.7”
   com.adobe.stock.panel.licensing-embedded  1.0.0 - from the file “C:\Program Files\Common Files\Adobe\CEP\extensions\CC_LIBRARIES_PANEL_EXTENSION_3_9_288\extensions\stock-panel-licensing\index.html”
   com.adobe.capture.extension  1.0.0 - from the file “C:\Program Files\Common Files\Adobe\CEP\extensions\CC_LIBRARIES_PANEL_EXTENSION_3_9_288\extensions\capture\capture.html”
   Adobe Color Themes  6.1.0 - from the file “C:\Program Files\Adobe\Adobe Photoshop 2021\Required\CEP\extensions\com.adobe.KulerPanel.html\index.html”
   Export As  4.8.13 - from the file “C:\Program Files\Adobe\Adobe Photoshop 2021\Required\CEP\extensions\com.adobe.photoshop.crema\index.html”
   Export As  4.8.13 - from the file “C:\Program Files\Adobe\Adobe Photoshop 2021\Required\CEP\extensions\com.adobe.photoshop.crema\index.html”

Installed TWAIN devices: NONE

Have you update your graphic card version and deleted your preferences file on launch?
If you still get the unknown error, could you upload or send me (itoda@adobe.com) your file so that we can debug it in house?
Thank you very much.

This isn’t a fix but if you need to get some files out, this worked for me so I hope it works for you too.

My Save As still works so here’s my workaround:

1. Save as 

-Format: PNG

-Save: As a copy (check)

[Save]
2. Import saved png file back into photoshop

*Export As functionality returns for png file*

3. Export As to export in different sizes. 

I hope this helps someone. 

Found the solution through adobe support, it's related to the new graphic card-based processing improvement in the program. Go to Edit>Preferences>Performance and uncheck the graphic processor option from there and relaunch the application. This will fix the problem with the heal brush as well.

I am also having a problem when exporting, it informs that in the visualization an unknown error occurred and does not present the images to be exported. Also, I can't save the project. I have already tested other ADOBE programs and none of them showed errors, only photoshop. I have tried some methods, I have reinstalled the program and it remains.