P: People Masking fails on Mac (Intel)

Are you using an Intel Mac?

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

same problem here, lets hope they fix this bug soon

  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.

When I try to create a “people mask” I get the message “no people found.”

It’s happening on all photos.  I am attaching a screenshot that is pretty obvious there is an issue with my masking options.  

Thanks John for taking the time to update us.  That seems a well informed/reasonable conjecture.  It’s true that there were lots of bugs in MacOS 26.3, which is not great at that stage in the Tahoe life-cycle. 

Fingers crossed it gets fixed soon!  

My work round continues to be to do most of the editing on my Intel Mac and then put selects that need masking in to a LR collection then do the masking on those on an M4 Max laptop (where it works fine). 

As all work arounds add friction, like you say, lets hope Apple/AMD fix this...However, as Intel Mac support goes out after Tahoe, I fear they may not have strong incentive to apply a lot of coding resource to something that will impact a rapidly dwindling user base...let’s hope they will address this!

People detect Mask does not work anymore

Lightroom Classic version: 15.3 [ 202604090947-8f3672ed ]
License: Creative Cloud
Language setting: en-US
Operating system: Mac OS 26
Version: 26.4.1 [25E253]
Application architecture: x64
Logical processor count: 12
Processor speed: 3.3GHz
SqLite Version: 3.36.0
Adobe GSDK Version: 1.4.0.213

Built-in memory: 40,960.0 MB
Dedicated GPU memory used by Lightroom: 2,962.7MB / 4,080.0MB (72%)
Real memory available to Lightroom: 40,960.0 MB
Real memory used by Lightroom: 5,834.3 MB (14.2%)
Virtual memory used by Lightroom: 124,214.1 MB
Memory cache size: 218.9MB
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: 735MB / 20479MB (3%)
Camera Raw real memory: 897MB / 40960MB (2%)

Cache1: 
Final1- RAM:275.0MB, VRAM:0.0MB, untitled shoot_0001.NEF
Final2- RAM:432.0MB, VRAM:1,374.0MB, Patricia Schnider__0041.NEF
NT- RAM:707.0MB, VRAM:1,374.0MB, Combined:2,081.0MB

Cache2: 
m:218.9MB, n:626.9MB

U-main: 139.0MB

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

Graphics Processor Info: 
Metal: AMD Radeon Pro 5300
Init State: GPU for Image Processing supported by default
User Preference: GPU for Export enabled
Enable HDR in Library: OFF
GPU for Preview Generation: Auto (S3_3)

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Users/devoncmcwilliams/Lightroom Catalogs 2026/2026 Branding/2026 Branding.lrcat
Settings Folder: /Users/devoncmcwilliams/Library/Application Support/Adobe/Lightroom

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

Config.lua flags: 

This is a known issue with the GPU drivers of your AMD Radeon Pro 5500 XT. I’m not sure if there is a fix. GPU drivers cannot be updated independently from a MacOS update. There is a very long thread on this already: 

I am experiencing a critical issue with the "Select People" masking feature in Lightroom Classic.

System Specs:

Hardware: iMac 27-inch (Intel), AMD Radeon Pro 5500 XT 8GB

OS: macOS Tahoe 26.4.1

LR Version: Latest (v15.2.1)

The Problem:
Since April, the AI masking says "No people found" on all portrait photos. This feature worked perfectly on the exact same iMac until late March.

What I've tried so far (and failed):

Clean reinstalled Lightroom and Camera Raw.

Deleted 'CameraRaw' settings folder in Application Support.

Formatted the SSD and reinstalled macOS.

My MacBook Air M5 identifies people instantly with the same settings/version, but my Intel iMac does not.

Is this a known driver compatibility issue between the latest Adobe AI engine and Intel/AMD GPUs on macOS Tahoe? Any help would be appreciated.

Any update on this critical bug?