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sarrelibre
Participant
February 27, 2026
Answered

P: People Masking fails on Mac (Intel)

  • February 27, 2026
  • 73 replies
  • 1949 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.

       

       

      73 replies

      Show previous replies
      JohanElzenga
      Community Expert
      JohanElzengaCommunity Expert
      Community Expert
      March 24, 2026

      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
        defaultzx5k98jm3xqh
        Participant
        March 24, 2026

        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
        johnrellis
        Legend
        March 25, 2026

        [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
        Slidinghorn
        Participant
        March 23, 2026
        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
        johnrellis
        Legend
        March 23, 2026

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

         

        johnrellis
        johnrellis
        Legend
        March 23, 2026

        @Paul5EF7, the evidence is strongly pointing to a buggy graphics driver released by Apple for Intel Macs with AMD GPUs.  See here for more details:

         

        P
        Paul5EF7
        Participant
        March 22, 2026

        @Ian Lyons Thanks for the suggestion, but unfortunately, the fixes suggested did not work.

        Ian Lyons
        Community Expert
        Ian LyonsCommunity Expert
        Community Expert
        March 22, 2026

        You’re using an Intel based Mac with AMD GPU. So, you’re seeing the same issue as described in 

         

        There are some temporary workarounds provided in above thread.

        Peter Geluk
        Peter Geluk
        Participant
        March 22, 2026

        Same here. Stopped working after either upgrading to MacOs Tahoe OR one of the Adobe Lightroom updates, not sure.
         

        I’m running Lightroom 15.2.1 on an Intel iMac from 2020. Granted, not the newest Mac, but also not a dinosaur. And, it was working before, so can’t be the hardware, unless Adobe decided to (in the somtware) exclude all Intel Macs from using this functionality. 

        In any case, I won’t be upgrading my Mac anytime soon, so it’s up to Adobe to come up with a fix, together with Apple if Tahoe turns out to be the problem.

        johnrellis
        johnrellis
        Legend
        March 23, 2026

        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.

        johnrellis
        johnrellis
        Legend
        March 22, 2026

        Are you on an Intel Mac? There are many reports about these symptoms on Intel Macs. 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.

        P
        Paul5EF7
        Participant
        March 22, 2026

        Thanks John - See below:

         

        Lightroom Classic version: 15.2 [ 202602111402-ec4112e8 ]
        License: Creative Cloud
        Language setting: en-GB
        Operating system: Mac OS 26
        Version: 26.3.1 [25D2128]
        Application architecture: x64
        Logical processor count: 20
        Processor speed: 3.6GHz
        SqLite Version: 3.36.0
        Adobe GSDK Version: 1.4.0.171

        Built-in memory: 65,536.0 MB
        Dedicated GPU memory used by Lightroom: 393.2MB / 8,176.0MB (4%)
        Real memory available to Lightroom: 65,536.0 MB
        Real memory used by Lightroom: 2,565.3 MB (3.9%)
        Virtual memory used by Lightroom: 48,553.1 MB
        Memory cache size: 1,219.0MB
        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: 211MB / 32767MB (0%)
        Camera Raw real memory: 213MB / 65536MB (0%)

        Cache1: 
        NT- RAM:0.0MB, VRAM:0.0MB, Combined:0.0MB

        Cache2: 
        m:1,219.0MB, n:0.0MB

        U-main: 190.0MB

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

        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: /Users/paul/Pictures/Lightroom/Lightroom Catalog-v13-3.lrcat
        Settings Folder: /Users/paul/Library/Application Support/Adobe/Lightroom

        Installed Plugins: 
        1) AdobeStock
        2) Aperture/iPhoto Importer Plug-in
        3) Flickr
        4) Helicon Focus Export
        5) Luminar AI
        6) Luminar Neo
        7) Show Focus Points

        Config.lua flags: 

        P
        Paul5EF7
        Participant
        March 21, 2026

        In the past few weeks, my LRC is failing to identify any people when creating a mask. The people view will detect faces when in Library, but when in edit, and I try to create a people mask, it says “No People Detected” - this is even when there is a clear and obvious person/face as the centre focus of the picture and is happening with all photos. Within my Catalog settings/Metadata, I have “Automatically detect faces in all photos” ticked.

        Any suggestions on how to resolved this?

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