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Participant
October 2, 2026
Question

AI Masks (Subject, Objects, Sky) not working on Mac M3

  • October 2, 2026
  • 1 reply
  • 8 views

I have been unable to use the AI Masks for about a month. When I click on one of the icons, it blinks like it is making the mask but then does not. Has anyone had this issue and figured out a solution?

Thanks!

Lightroom Classic version: 15.6 [ 202609251514-f839cde9 ]
License: Creative Cloud
Language setting: en-US
Operating system: Mac OS 26
Version: 26.6.2 [25G83]
Application architecture: arm64
Logical processor count: 8
Processor speed: NA
SqLite Version: 3.45.1
Adobe GSDK Version: 1.4.0.213

Power Source: Plugged In, 80%
Built-in memory: 24,576.0 MB
Dedicated GPU memory used by Lightroom: 5,312.7MB / 18,186.2MB (29%)
Real memory available to Lightroom: 24,576.0 MB
Real memory used by Lightroom: 1,976.5 MB (8.0%)
Virtual memory used by Lightroom: 442,407.6 MB
Memory cache size: 670.5MB
Internal Camera Raw version: 18.7 [ 2743 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 1591MB / 12287MB (12%)
Camera Raw real memory: 1657MB / 24576MB (6%)

Cache1: 
Final1- RAM:991.0MB, VRAM:4,456.0MB, IMG_2117.DNG
NT- RAM:991.0MB, VRAM:4,456.0MB, Combined:5,447.0MB

Cache2: 
m:670.5MB, n:383.3MB

U-main: 192.0MB

Standard Preview Size: 2880 pixels
Displays: 1) 3420x2214

Graphics Processor Info: 
Metal: Apple M3
Init State: GPU for Export supported by default
User Preference: Auto
Enable HDR in Library: OFF
GPU for Preview Generation: Off (S5_17)

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Users/cynthiareynolds/LR_CATALOG/LR_CATALOG-v13-3.lrcat
Settings Folder: /Users/cynthiareynolds/Library/Application Support/Adobe/Lightroom

Installed Plugins: 
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Cascable Transfer
4) Collection Creator
5) Excire Search
6) Flickr
7) jb: Search + Replace

Config.lua flags: 


 

1 reply

Srishti Bali
Community Manager
Community Manager
October 2, 2026

Hi ​@cynthia.reynolds 

 

Apologies for this experience, and thank you for sharing the system information. This is helpful. A few troubleshooting steps I would recommend are:

 

If the issue persists after trying these steps, could you please confirm the following details?

  • Does this happen with a specific file, or does it occur with multiple images?

  • If it happens with multiple images, did the issue start after the recent update?

  • Could you please share a short screen recording showing the issue?

 

These details will help us better understand the behavior and investigate further.

Thanks, Srishti Bali | Community & Engagement Strategist, Digital Imaging | Adobe