Masking of people doesn’t work anymore

​@cde1313 I am having this issue now.

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.

I am having this issue now. I have not had problems with this function until yesterday.

Metal: AMD Radeon Pro W5700X

For over a year, LR's AI commands have been tripping over bugs in the graphics drivers for Intel Macs' Radeon 500- and 5000-series GPUs.
 
The drivers in Mac OS 15 appeared to have addressed many of the issues, but there continues to be a steady trickle of reports like yours. It looks like neither Apple nor AMD care much about fixing driver bugs for seven-year-old GPUs on a platform Apple wants to go away.

It would be good to merge these recent reports into a single thread, so that Adobe gets a more accurate view of the issue. Unfortunately, the new forum is still missing three months of recent content, and it’s search function is very poor, so I can’t find these reports.

Aaand the next one, welcome to the club! 🥳

I hope this will get fixed soon …

I’m experiencing the same issue:

La détection de personnes ne fonctionne pas dans le menu masque mais la détection du sujet fonctionne.

Cela ne fonctionne pas non plus avec le module camera raw de PS

J’ai désinstallé et supprimé les préférences de Lightroom. J’ai essayé en désactivant le GPU mais cela ne change rien

Voici les informations système : 

Version Lightroom Classic: 15.2 [ 202602111402-ec4112e8 ]
Licence: Creative Cloud
Paramètre de langue: fr-FR
Système d'exploitation : Mac OS 26
Version : 26.3.0 [25D125]
Architecture de l'application : x64
Nombre de processeurs logiques: 24
Vitesse du processeur : 3,3Ghz
Version SQLite: 3.36.0
Version Adobe GSDK: 1.4.0.171

Mémoire intégrée : 65 536,0 Mo
Mémoire GPU dédiée utilisée par Lightroom: 6 330,5Mo / 16 368,0Mo (38%)
Mémoire réelle disponible pour Lightroom : 65 536,0 Mo
Mémoire réelle utilisée par Lightroom : 5 497,9 Mo (8,3%)
Mémoire virtuelle utilisée par Lightroom : 55 948,3 Mo
Taille de la mémoire cache : 920,9Mo
Version interne de Camera Raw: 18.2 [ 2482 ]
Nombre maximal de liens utilisé par Camera Raw  : 5
Optimisation SIMD de Camera Raw : SSE2,AVX,AVX2
Mémoire virtuelle de Camera Raw: 1286Mo / 32767Mo (3%)
Mémoire réelle de Camera Raw: 1304Mo / 65536Mo (1%)

Cache1: 
Final1- RAM:657,0MB, VRAM:5 374,0MB, Pleiniere26fev2026-077.dng
NT- RAM:657,0MB, VRAM:5 374,0MB, Combined:6 031,0MB

Cache2: 
m:920,9Mo, n:352,3Mo

U-main: 144,0Mo

Taille d’aperçu standard: 2560 pixels
Affichages : 1) 2560x1440, 2) 1200x1920

Informations relatives au processeur graphique : 
Metal: AMD Radeon Pro W5700X
État initial: GPU pour l'exportation pris en charge par défaut
Préférence utilisateur: GPU pour exportation activé
Activer la HDR dans Bibliothèque: Désactiver
Processeur graphique pour la génération d’aperçu :Activé (S5_15)

Dossier de l'application : /Applications/Adobe Lightroom Classic
Chemin d'accès à la bibliothèque : /Volumes/Raid Interne/Lightroom/pro/Lightroom Catalog-principalMai24.lrcat
Dossier des paramètres : /Users/FredericAlbert_1/Library/Application Support/Adobe/Lightroom

Modules installés : 
1) Adobe Stock
2) ColorChecker Camera Calibration
3) Flickr
4) Koken
5) Logi Plugin
6) Loupedeck2
7) Module externe d'importateur Aperture/iPhoto

Marqueurs Config.lua: 

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​@sarrelibre Turning off the graphics processor makes no difference.

Weirdly, LR’s AI commands don’t obey the setting of Preferences > Performance > Use Graphics Processor. On Mac, there’s no way to stop the AI commands from using the GPU.

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​@sarrelibre Metal: AMD Radeon Pro W5700X

Operating system: Mac OS 26

For over a year, LR's AI commands have been tripping over bugs in the graphics drivers for Intel Macs' Radeon 500- and 5000-series GPUs.
 
The drivers in Mac OS 15 appeared to have addressed many of the issues, but there continues to be a steady trickle of reports like yours. It looks like neither Apple nor AMD care much about fixing driver bugs for seven-year-old GPUs on a platform Apple wants to go away.

Sorry I can’t help, but I have the EXACT SAME problem!

And it annoys the heck out of me.

I suspect it might be related to the new assisted selection. I never activated it, but apparently it was running in the background by default.

Hi, thanks for reaching out!

You can try going to the Preferences for Lightroom Classic, then Performance, and disable the option to Use Graphics Process. Once done, relaunch Lightroom Classic to check if that makes a difference. 

Thanks, 

Nikunj

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: