P: People Masking fails on Mac (Intel)

Forum|Forum|6 months ago
February 27, 2026
294 replies
2973 views

Since the latest versions of Lightroom Classic and MacOS the masking of people always shows “No people found” – even on photos where it was working before.

Lightroom Classic version: 15.2 [ 202602111402-ec4112e8 ]
License: Creative Cloud
Language setting: en-DE
Operating system: Mac OS 26
Version: 26.3.0 [25D125]
Application architecture: x64
Logical processor count: 24
Processor speed: 3,3GHz
SqLite Version: 3.36.0
Adobe GSDK Version: 1.4.0.171

Built-in memory: 196.608,0 MB
Dedicated GPU memory used by Lightroom: 4.743,3MB / 16.368,0MB (28%)
Real memory available to Lightroom: 196.608,0 MB
Real memory used by Lightroom: 3.040,3 MB (1,5%)
Virtual memory used by Lightroom: 55.303,7 MB
Memory cache size: 62,7MB
Internal Camera Raw version: 18.2 [ 2482 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 631MB / 98303MB (0%)
Camera Raw real memory: 644MB / 196608MB (0%)

Cache1:
Final1- RAM:519,0MB, VRAM:1.818,0MB, ALP05331.ARW
NT- RAM:519,0MB, VRAM:1.818,0MB, Combined:2.337,0MB

Cache2:
m:62,7MB, n:253,8MB

U-main: 129,0MB

Standard Preview Size: 6016 pixels
Displays: 1) 6016x3384

Graphics Processor Info:
Metal: AMD Radeon Pro W5700X
Init State: GPU for Export supported by default
User Preference: Auto
Enable HDR in Library: OFF
GPU for Preview Generation: Off (S5_15)

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Volumes/Sonnet m2/Lightroom/Lightroom Catalog-v13-3.lrcat
Settings Folder: /Users/zippo/Library/Application Support/Adobe/Lightroom

Installed Plugins:
1) Publisher, By The Turning Gate

Config.lua flags:

Correct answer johnrellis

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@sirthrosturv, @Hot Tubs Oxfordshire, there are many reports that People masking fails on Intel Macs with Mac OS 26.3, and the evidence strongly points at a buggy AMD graphics driver released in 26.3:

While waiting for Apple and AMD to release a fixed driver, try this workaround:

@Hot Tubs Oxfordshire I intalled Mac OS Sequoia on an external drive (since it appears impossible to downgrade Tahoe) and people detection is no an issue when runnig Lightroom under that OS on the iMac.

That’s further evidence it’s a bug in the Mac OS 26.3 AMD graphics driver.

Show previous replies

Jim Wilde

Community Expert

Are you saying that when you open the Masking tool on an image that contains people, the people tab in the Masking panel does not detect any people? Does this happen on all images containing people, or on one or two specific photos? Can you post a screenshot of an example photo, showing the image and the opened Masking panel with the People tab expanded?

S

Spea1990

Participant

Yes that's exactly what's happening on all photos with people in it. When in the masking tool the side bar where it says subject, sky , and background there's a list under where it has people and when I click on the drop done arrow by people it quickly scans then it's blank

Jim Wilde

Community Expert

Can you share an example image which Lightroom fails to detect any people. Use something like Dropbox or WeTransfer to upload the image then share the link here so that we can try to reproduce the same problem.

S

Spea1990

Participant

I'm having trouble getting the face detection to work on Lightroom, I've restarted Lightroom, disabled and enabled face detection, again still nothing, and I tried updating lightroom. I still can't edit faces seperately using the masking tool.

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