Participant

Question

P: People Masking fails on Mac (Intel)

Forum|Forum|1 month ago
February 27, 2026
66 replies
1502 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:

Show previous replies

MassC

Legend

Hey @droscoe

Thanks so much for sharing your OS version—that’s really helpful. To better understand what might be causing this, could you also share the exact ACR version you’re using? You can find it in Photoshop or Lightroom under Help > System Info. Just copy the details into a text file and attach it to your reply.

^CM

droscoe

Participant

Here are the details copied to a text file as requested. Thanks

Photoshop Details.rtf

johnrellis

Legend

Are you using an Intel Mac? 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.

droscoe

Participant

in ACR masking all works well ie ie Landscape , background, subject etc but find people always returns “unable to find people”.

I have reset graphics and restarted with no success

johnrellis

Legend

[View this post in your web browser. It contains formatting and images that don't appear in email.]

From @droscoe‘s attachment:

Operating System: Mac OS 26.3.1
Camera Raw 18.2.2 (2512)
GPUName: AMD Radeon Pro 5300

JohanElzenga

Community Expert

Are you using Windows? If so, check the website of your GPU manufacturer for driver updates. If you use a Ndvia GPU, then make sure you install the Studio drivers, not the Game Ready drivers.

-- Johan W. Elzenga

defaultzx5k98jm3xqh

Participant

Lightroom is no longer able to detect people in my photos, while using the mask module. When I choose, “Select People”, it says “No People Found”, when there is obviously people in the photo.

johnrellis

Legend

[View this post in your web browser. It contains formatting and images that don't appear in email.]

@defaultzx5k98jm3xqh Lightroom is no longer able to detect people in my photos, while using the mask module.

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.

Slidinghorn

Participant

I have the same problem. I can't select the character because it's invisible, and I can't remove the background because it's impossible. I've tried everything, including deleting and reinstalling, and cleaning the library. The problem is serious and significantly limits my work. The problem appeared after the last Photoshop update... I see that the AI is having a problem.

johnrellis

Legend

Moderators, @Rikk Flohr_Photography, please merge with this thread about People masking on Intel Macs: