Bug Reports

Hello,Version: Substance 3D Painter 12.0Issue: When I modify an existing Color Selection mask on a folder (by adding or removing a picked color), the Base Color of the material inside that folder disappears. Other channels (Normal, Metallic, Roughness, etc.) remain unaffected.Steps to reproduce:Bake an ID map from vertex colors (e.g. red, green, blue areas). Create Folder A with a black mask + Color Selection picking red and green. Create Folder B with a black mask + Color Selection picking blue. Place fill layers with materials inside each folder. Base Color displays correctly at this point. Remove red from Folder A's Color Selection, then add red to Folder B's Color Selection. Result: The Base Color in Folder B no longer displays for the newly added red area. Normal, Metallic, and other channels display correctly.Workaround: Deleting the Color Selection alone does not fix it. Deleting the entire black mask and recreating it from scratch (black mask → Color Selection → pick colors) re

Why does Painter insist on going back to base color from mask mode when I switch layers? Working in mask mode is often the quickest way to see which surfaces in a complex scene have which materials, but every time I switch layers it jumps back to base color. This is really disruptive to workflow. With a complex scene with many layers, keeping track of material assignment is already extremely difficult in Painter and it's important to try to avoid overlapping materials. So masking is very important. Working in mask mode to quickly check thru all layers in this way would really be the fastest method... except Painter jumps out of this mode with every layer change, and all the associated redraw time that this entails. Think I really might have to learn Mari.....

Hello, I purchased Substance Painter 3D Steam Edition and installed it on Arch Linux (GNOME) and on the latest 64-bit version of Ubuntu LTS (GNOME). I am encountering an extremely annoying issue with the software’s color picker. The bug manifests differently depending on the distribution : For Arch Linux – GNOME  : When I click directly on the color, the widget does not appear at all—the click seems to do nothing. When I use the eyedropper tool, the screen turns black until I select a color (which ends up being black since the screen is black). After that, the screen returns to normal. This makes the software practically unusable. For Ubuntu LTS (latest 64-bit version) – GNOME : When I click directly on the color, the widget appears correctly and works as expected. However, when I use the eyedropper tool, the same bug as on Arch occurs. Note : When I refer to the color and the eyedropper, I mean the main color picker as well as all the settings used to modify a material (textures, etc.

So i posted this a while back before but the Post has been removed for some reason…. i guess because being inactive on the post. but yeah this happens when using the Pen Tool more you use it. adds artifacts to your Height and the only fix for this was to Down Grade to 2025 11.0.3… Any Higher that that Version the Bug still remains there…… shocking its still there in 2026 Video example i made for the old post  

Hi! I have a problem.My Autosave plugin settings are not saved.I am trying to configure this plugin, but after I close Substance Painter and open it again, all the settings of the Autosave plugin are reset to the default ones.What could be the problem?Windows 11 operating System.

Environment:Substance 3D Painter 2026 (version 12.0.1 Build 5292 - 5c7d4ababad6d05862324959feb192c9a033dd44) -- native linux build, running with steam linux runtime disabled Arch Linux (Linux vargr 6.19.6-zen1-1-zen #1 ZEN SMP PREEMPT_DYNAMIC Wed, 04 Mar 2026 18:24:56 +0000 x86_64 GNU/Linux) AMD Ryzen 9 9950X3D (Zen 5, AVX-512), NVIDIA RTX 3080 (driver 590.48.01), 64 GB RAMReproduction:Open substance painter on linux via steam (launch steam using `steam -compat-force-slr off` if necessary to bypass broken steam runtime) Load up a model Apply material like “Fabric Tarpaulin” to model Watch material visually apply Program freezes and crashesDetails:From what I’ve been able to figure out, the faulting thread is a Substance blend worker:Thread 154 "SubstanceThread" received signal SIGSEGV, Segmentation fault.[Switching to Thread 0x7f0946ffe6c0 (LWP 96974)]0x00007f2bf156dc10 in ?? () from ./libsubstance_sse2_blend.soI used GDB to grab the disassembly at the RIP at time of crash:=> 0x7f2b

I recently updated to Substance painter 12.0 today, updating one of my projects I was working on.I then go to export the textures to files, same as I’ve done for years on previous versions and..it does nothing. Just sits there, no files generated, just stuck on computing textures results.Have tried reinstalling, no change. Was working fine on the last version.

Substance Painter 12.0.1 I have this issue where after baking all the maps look fine except world space normal (see first screenshot). The mesh is triangulated in Blender before export. And I have re-imported the FBX to blender to triple check this. Must be some baking bug in painter? Not having a correct world space normal is really messing up all the smart materials, not sure how to fix it. World Space Normals in Painter Blender MatCapAttached my exported FBX if you want to test it.

Hi guys, I'm having an error when baking any model in the software. It creates artifacts on the AO map that are the same in all models. I tried to find a solution for this, but I was unsuccessful. Could somebody help me?  

Hello yall,So I recently began a 3D model journey in which I would texture using photoshop. I decided to pay for Substance Painter on Steam to use a better program. [according to other creators]. However I have recently run into a issue.Any time I try to export a texture file the program will crash. Sometimes I can export a texture or two before it decides to crash. I am exporting what I consider a basic texture, 2D View png 8 bits 2048 and Dilation + transparent, I tried to make it 1024 and still crashes.My computer is not buns at least I don't think so, my specs are a Ryzen 9 5900x amd gpu 7900xtx and 64 gb of ram. I have 3tb of free space on the drive where substance is installed. If anyone knows a fix or a way to trouble shoot please let me know. It has stopped my work flow. 😓I watch my PC usage and nothing seems to spike while exporting. This just started recently and I even rolled back but nothing changes if anything it got worse

Since the last update, everytime i export a model directly to subtance stager to take photos, the model doesnt export the roughness channel, you can see in the first photo how the model dont have any roughnes map, looks like plasticine, the second one has the same materials and the rouighness look way different, works perfectle and was exported with older version, this ruin all my workflow since the update, someone else has the same problem?? 

Right click white circle appear on the top with wacom tablet.Why? It is 2024. But this bug is existing last 20 years. And still here!In photoshop, Illustrator. Now in the Substance Painter.You need this everytime. Right click + alt  - navigation. Right click  + ctrl - change brush radius.And everytime you have this huge white circle with right mouse click.How to get rid of this?

Substance Painter 11.1.3 consistently Generates Thumbnails will scroll through assets, whether its materials, smart materials, alphas, etc. I have set the icon memory budget to 2000MB. I also used Environment Variables, SUBSTANCE_PAINTER_PREVIEWS_MEMORY_BUDGET, set to 24000. When scrolling through assets Substance Painter slows down significantly, where adding a material or smart material takes an extrememly long time to apply or load.5950x RTX 3090128 GB RAM All nvme SSDs

Accidentally overwrote my SPProject and my autosave won't open giving "Failed to Open Project", I have v 11.1.3 but the original project and it's autosave were created in a previous version in end of January. Need help opening this autosaved file since it’s a work file, it weights 3.21 GB so I'm sure it's not an empty scene because that’s pretty much the same weight the original project file had, just cannot get to open it, can anyone help with it?https://we.tl/t-kklfzFDR77 wetransfer stays up for 3 days but I can update it after it expires if needed.Really need to open this file!😫

Hello. recantly I bought mobile device with new Ryzen AI MAX 395+ including 8060s iGPU. Unfortunately I encountered problem with GPU accelerated baking, CPU only baking is working perfectly fine. When I click bake, programs starts to proceed with baking although no progress is being shown. After a while baking finishes, but nothing changes in terms of viewport ouput and when I try to interact with it nothing changes ,viewport become static. I can freely interact with UI though like nothing ever happened. When I check the log file it says that baking has actually has been completed but few lines above there is fatal error saying:[ ERR] <Qt> "[DBG ERROR][Main]" "[SALpp] [Level:FATAL] [Component:DeviceLost] GPU Device lost: driver crash or TDR"I tried to increase Tdr value to as high as 180s for both keys, I also was testing it with different VRAM allocation values, up to 48gb (16/32/48gb, 48gb being max as my total system memory is 64gb of ram). That haven’t resolved the problem th

# note that this bug only happens after you first open the scene# if you perform operations that modify the file during the same session, the error does not reoccur# oddly, this seems to happen with large numbers of meshes with only some of them being enabled# my test scene had 9 meshes, and if I enabled anything less than 4 of those 9 meshes in the# geometry mask on the group layer, it generated a ‘vector too long’ errorimport substance_painter as spcurrent_stack = sp.textureset.get_active_stack()selected_layers = sp.layerstack.get_selected_nodes(current_stack)for layer in selected_layers:    if layer.get_type() == sp.layerstack.NodeType.GroupLayer:        enabled_mesh_names = layer.get_geometry_mask_enabled_meshes()

import substance_painter as spcurrent_stack = sp.textureset.get_active_stack()selected_layers = sp.layerstack.get_selected_nodes(current_stack)for layer in selected_layers:    if layer.get_type() == sp.layerstack.NodeType.GroupLayer:        # this always returns an empty list, regardless of the number of effects on the group layer        layer_effects = layer.content_effects()

Inside Painter, MacBook trackpads only control zoom when two-finger swiping and nothing else. Swiping zooms, spreading fingers does nothing, shift+swipe does nothing.I would expect it to work the same as the 3D view inside Designer, in which two-finger swiping rotates, shift+swipe pans, and finger-spreading zooms in/out. That’s how all other 3D applications I’m aware of also handle trackpad navigation, so this doesn’t seem like an intentional design choice.

Hello. I added some plate polygons to add some flair to the model. Then I added a color material to the plate polygons and baked it again. However, doing so caused the previously normal drawing to collapse.I checked it several times, and it was the exact same model except for the plate polygons, and there were no problems with the color material. Therefore, I consider this a bug. 

Hello!After updating Substance 3D Painter to version 11.1, I encountered a problem: the baker stopped working.What happens:When I try to start baking, the program completely freezes and becomes unresponsive. I have to force-close it through the Task Manager. The issue occurs every time, even in a new project.My system:Windows 11GPU: NVIDIA GTX 1080 TiGPU drivers are updated to the latest versionWhat I have already tried:Restarting the software and the PCCreating a new projectUnfortunately, the problem persists.Could you please advise what I can do to restore the baker's functionality? Are there any known conflicts or recommended settings?Thank you!

Stencil: after draging a alpha texture into the slot i try to draw on a paint layer that i created on a black mask. the preview of the texture works and i am able to scale rotate and move the alpha. but when i try to draw it on the mesh nothing happens. weirdly enough, when i draw on the UV/2D view it works. Its only broken in the 3D view. Projection tool: when i drag a texture into the stencil it does not show up in my paint buffer (the buffer just stays grey) so i dont see what i project but when i left click, it actually project the thing onto the mesh. So just the preview is broken. 

In Texture Bake mode, even if the model’s geometry is perfectly flat, if there are polygon edges or UV seams within that flat area, the curvature bake still produces white lines.Please let me know if there is a proper setting to avoid this or if it is a bug.If it is a bug, I would like it to be fixed.Thank you.

Hello there,My team works on building assets for a AAA project, and part of our pipeline involves baking AO at a max occluder distance of 200 for consistent AO results across buildings.As of Substance 11.1, we can no longer set the Max Occluder distance beyond 1. This is disrupting our workflow and requiring us to roll-back to a prior version. 

Hi I am using substance 3d painter to paint over my 3d model. I can only paint one object at a time (unable to load UDIMS) and the texture maps are not fully fitted into the box when i upload the export jpegs into blender model so the model doesnt come out great.   so two issues1. my uv maps arent fully fitted into the box2. I cant load UDIMS and paint across the 39objects that are attached together this is the model. I think its because the objects are touching and thats what happensI mainly want to paint and not dive deep into modelsI opened the model in opengl, directx not sure what the issue is. will include the model obj attached  

hi guys!I'm on a AMD RYZEN AI MAX+ 395 w/ Radeon 8060S, 3000 Mhz, 16 Core(s), 32 Logical Processor(s) wth 128gb of memory vram.I oticed that the Stylized filter at 4k makes Substance Painter freeze or the viewport will become unrespnsive (only the vieport, the menu are still working) . It only happens at 4k, at 2k the same filter works butter smooth.Usually, with 128gb of vram I'm able to use Painter without issue, it's actually very fast.Thank you!Max