AI Noise Reduction not working in Lightroom Classic Mac

Forum|Forum|4 months ago
October 19, 2025
2 replies
146 views

I went to go and use AI noise reduction today in Lightroom Classic on my mac and all it does is come up with a loading box saying "applying denoise" with a loading bar then disappears without doing anything. After doing this once, it won't let me apply ai denoise again or to any other photos without restarting and still it doesn't do anything to the photos. The same goes for Raw details and super resolution. Anyone have any idea why this is happening? I don't use AI denoise super often but I want my product to actually work

macOS

edtech21

Participant

Same exact problem here, and I've been using it for a long time before a recent update I'm assuming. Did you find anything out? Denoise works fine in Lightroom but not Lightroom Classic.

E

ExUSA

Legend

Please post your system info, it could be a related issue or something totally different.

edtech21

Participant

Lightroom Classic version: 15.0.1 [ 202511041508-dddee541 ]
License: Creative Cloud
Language setting: en-US
Operating system: Mac OS 26
Version: 26.1.0 [25B78]
Application architecture: x64
Logical processor count: 16
Processor speed: 2.3GHz
SqLite Version: 3.36.0
Adobe GSDK Version: 1.4.0.171

Power Source: Plugged In, 100%
Built-in memory: 65,536.0 MB
Dedicated GPU memory used by Lightroom: 0.0MB / 0.0MB (0%)
Real memory available to Lightroom: 65,536.0 MB
Real memory used by Lightroom: 2,242.4 MB (3.4%)
Virtual memory used by Lightroom: 39,017.1 MB
Memory cache size: 39.6MB
Internal Camera Raw version: 18.0 [ 2389 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 567MB / 32767MB (1%)
Camera Raw real memory: 671MB / 65536MB (1%)

Cache1:
Final1- RAM:549.0MB, VRAM:0.0MB, IMG_8982.CR3
NT- RAM:549.0MB, VRAM:0.0MB, Combined:549.0MB

Cache2:
m:39.6MB, n:188.8MB

U-main: 102.0MB

Standard Preview Size: 3584 pixels
Displays: 1) 3584x2240

Graphics Processor Info:

Init State: GPU Unsupported
User Preference: Auto
Enable HDR in Library: OFF
GPU for Preview Generation: Off (S0_0)

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Users/dominicvitobarone/Pictures/Lightroom/Lightroom Catalog.lrcat
Settings Folder: /Users/dominicvitobarone/Library/Application Support/Adobe/Lightroom

Installed Plugins:
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Flickr

Config.lua flags:

johnrellis

Legend

Please do the LR menu command Help > System Info and copy/paste the entire contents here so we can see exactly which versions of hardware and software LR thinks you're running and important LR options that are set.

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