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Answered

P: People Masking fails on Mac (Intel)

Forum|Forum|3 months ago
February 27, 2026
80 replies
2199 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.

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.

sjgruning

Known Participant

Lightroom Classic version: 15.3 [ 202604090947-8f3672ed ]
License: Creative Cloud
Language setting: en-US
Operating system: Mac OS 26
Version: 26.5.0 [25F71]
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: 32,768.0 MB
Dedicated GPU memory used by Lightroom: 5,534.3MB / 8,176.0MB (67%)
Real memory available to Lightroom: 32,768.0 MB
Real memory used by Lightroom: 7,698.4 MB (23.4%)
Virtual memory used by Lightroom: 82,030.7 MB
Memory cache size: 5,899.8MB
Internal Camera Raw version: 18.3 [ 2527 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 4873MB / 16383MB (29%)
Camera Raw real memory: 5790MB / 32768MB (17%)

Cache1:
Final1- RAM:689.0MB, VRAM:2,538.0MB, Gretchen_James May 2026-431.DNG
Final2- RAM:289.0MB, VRAM:0.0MB, Gretchen_James May 2026-589.DNG
NT- RAM:978.0MB, VRAM:2,538.0MB, Combined:3,516.0MB

Cache2:
m:5,899.8MB, n:541.1MB

U-main: 324.0MB

Standard Preview Size: 4096 pixels
Displays: 1) 4096x2304

Graphics Processor Info:
Metal: AMD Radeon Pro 5500 XT
Init State: GPU for Export supported by default
User Preference: Auto
Enable HDR in Library: ON
GPU for Preview Generation: Auto (S5_7)

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Volumes/WD 12 TB 1/Lightroom Classic/Lightroom Classic-v13-3.lrcat
Settings Folder: /Users/GheeGhee/Library/Application Support/Adobe/Lightroom

Installed Plugins:
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Flickr
4) Topaz Photo (Studio)
5) Topaz Photo AI

Config.lua flags:

sjgruning

Known Participant

Same, I am getting this as well. Very frustrating.

Didier_Peree

Participant

depuis quelques semaines et quelques mois même, dans le programme lightroom classic (maintenant 15.3) dans le module développement et dans masquage, je n’ai plus la possibilité de reconnaitre les personnes avec les sous masques de catégories (comme visage, peau, yeux etc...). J’ai un ami de mon club photo qui a le même problème.

J’ai essayé tout ce que j’ai pu trouver sur internet, sur les forums, via l’IA et je ne trouve pas la solution

Je suis sur MAC OS Tahoe 26,5, processeur Intel core I7 8 coeurs de 3,8Ghz, carte graphique AMD RADEON PRO 5500XT 8gb et j’ai 64Gb 2667Mhz DDR4

Quelqu’un a-t-il la solution

merci

johnrellis

Legend

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.

sjgruning

Known Participant

I am having the same issue and I just posted my system info.

hugh_1870

Participant

Editing photo in LRC. Open masking tool; select “Open New Mask”; choose “Select People”. Receive message “no people found”

johnrellis

Legend

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@hugh_1870 Editing photo in LRC. Open masking tool; select “Open New Mask”; choose “Select People”. Receive message “no people found”

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.

Rikk Flohr_Photography

Are you using an Intel Mac?

Rikk Flohr: Adobe Photography Org

DaroGallo

Participant

Hi Rikk,
Yes, 3,1 GHz Intel Core i5 de 6 núcleos.
Yes, but it was working perfectly until last week when it started malfunctioning.

DaroGallo

Participant

Cuando abro la pestaña de máscaras, no detecta a las personas. Detecta todo el resto ( Sujeto, fondo, etc ) .He probado con muchos consejos que encontré en la red, pero no hay caso.
Es una herramienta que utilizo mucho por mi trabajo y dejó de funcionar de un momento para el otro.

He probado:

- Actualizar el sistema operativo

-Reiniciar la conexión con adobe

-limpiar caché

-Cambié el estado de GPU

-Optimicé el catálogo

-Activé en biblioteca la detección de rostros

-y algunas cosas mas que ya no recuerdo,,

y el problema sigue.

Alguna sugerencia ??

Gracias de antemano

tonycomelonni

Participant

same problem here, lets hope they fix this bug soon

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