Participant

Answered

P: People Masking fails on Mac (Intel)

Forum|Forum|4 months ago
February 27, 2026
95 replies
2420 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

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

@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.

N

Nyarlanassar

Participant

Same problem on my iMac 3,8 GHz Intel Core i7 8 core + AMD Radeon Pro 5500 XT 8 GB. Always “no people found”, also with a studio portrait.

On my MacBook Air M2, no problems.

I feel very angry.

GCPhoto73

Participant

Same issue. Hopefully a fix soon.

Lightroom Classic version: 15.4 [ 202606101834-493069d4 ]
License: Creative Cloud
Language setting: en-US
Operating system: Mac OS 26
Version: 26.5.1 [25F80]
Application architecture: x64
Logical processor count: 16
Processor speed: 3.8GHz
SqLite Version: 3.36.0
Adobe GSDK Version: 1.4.0.213

Built-in memory: 131,072.0 MB
Dedicated GPU memory used by Lightroom: 7,934.5MB / 16,368.0MB (48%)
Real memory available to Lightroom: 131,072.0 MB
Real memory used by Lightroom: 23,903.9 MB (18.2%)
Virtual memory used by Lightroom: 78,419.3 MB
Memory cache size: 1,104.8MB
Internal Camera Raw version: 18.4 [ 2608 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 2017MB / 65535MB (3%)
Camera Raw real memory: 2202MB / 131072MB (1%)

Cache1:
Final1- RAM:66.0MB, VRAM:0.0MB, 1_GCC0816.jpg
Final2- RAM:960.0MB, VRAM:6,095.0MB, 20260620-_GC84777.dng
NT- RAM:1,026.0MB, VRAM:6,095.0MB, Combined:7,121.0MB

Cache2:
m:1,104.8MB, n:417.7MB

U-main: 143.0MB

Standard Preview Size: 5120 pixels
Displays: 1) 5120x2880

Graphics Processor Info:
Metal: AMD Radeon Pro 5700 XT
Init State: GPU for Export supported by default
User Preference: Auto
Enable HDR in Library: OFF
GPU for Preview Generation: On (S5_15)

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Users/glenncalvin/Pictures/Lightroom/Lightroom 6 Catalog Feb2018-3-v13-3.lrcat
Settings Folder: /Users/glenncalvin/Library/Application Support/Adobe/Lightroom

Installed Plugins:
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) DxO PureRAW 6
4) DxO PureRAW 6 Importer
5) Export to Photomatix Pro
6) Find Duplicates 2
7) Flickr
8) jf Twitter
9) jf Zenfolio
10) LR/Instagram
11) Photomatix Batch

Config.lua flags:

johnrellis

Legend

@GCPhoto73 There may not be a fix. See here for details and the only known workaround:

https://community.adobe.com/questions-675/p-people-masking-fails-on-mac-intel-1551766?postid=7687932#post7687932

johnrellis

Legend

@joem64338963 Please do the LR menu command Help > System Info, click the Copy button in the upper right corner, and paste into your reply here, so we can see exactly which versions of hardware and software LR thinks you're running and important LR options that are set.

joem64338963

Participant

I am having the same problem. What is the solution for this?

W

Wil1305

Inspiring

Same issues by the most. Intel chips are not supported by Apple anymore 😡 and we are now forced to another system

KR Seals

Community Expert

See this thread. Is that your issue?

Ken Seals - Nikon Z 9, Z 8, 14mm-800mm. Computer Win 11 Pro, I7-14700K, 64GB, RTX3070TI. Travel machine: 2021 MacBook Pro M1 MAX 64GB. All Adobe apps.

MaryGee4

Participant

I am using a Mac desktop with LR, I have never had this issue before. Maybe due to an update? I have tried every setting check I could find on google to resolve the issue but the “people” masking is still not working, it says “no people detected”. This is even on photos I have recently edited and have eyes, skin etc. masking in place. HELP!

johnrellis

Legend

@MaryGee4 Please do the LR menu command Help > System Info, click the Copy button in the upper right corner, and paste into your reply here, so we can see exactly which versions of hardware and software LR thinks you're running and important LR options that are set.

MaryGee4

Participant

I am having this issue, it is not identifying people for masking. Please help!

W

Wil1305

Inspiring

Currently no solution😡 Can’t work or install the new updates of LRC as long problem exists

johnrellis

Legend

@Wil1305 Currently no solution

There are several reports that rolling back to Mac OS 26.3 works around the problem with the AMD graphics drivers. See this article for options on how to do that:

https://www.macworld.com/article/673171/how-to-install-older-versions-of-macos-or-os-x.html

W

Wil1305

Inspiring

Thanks for the info 👍 but I hope there will com soon an update of Tahoe which don’t have this effect.

aphid9

Participating Frequently

"No people found" in LR CC Masking tool. I have sent Help messages to Adobe and posted several inquiries, including AI. No replies or adequate solutions offered. Can you assist? Thank you!

johnrellis

Legend

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@aphid9 "No people found" in LR CC Masking tool.

Are you on an Intel Mac? If so, see the answer marked in green at the top of this thread.

If you’re not on an Intel Mac, please start a new thread. Please do the LR menu command Help > System Info, click the Copy button in the upper right corner, and paste into your post, so we can see exactly which versions of hardware and software LR thinks you're running and important LR options that are set.

johnrellis

Legend

Your Help > System Info didn’t get posted here. You can do that menu command, click the Copy button, and then paste the text here.

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