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Libby Caamaño
Participant
October 15, 2022
Question

Subject mask not selecting subject

  • October 15, 2022
  • 2 replies
  • 387 views

Hi, I am having probelms with subject selection in Lightroom Classic 11.5. This is a recent issue and I had succesfully used subject selection and achieved a perfect mask, a week later (no update in between) I am unable to select the subject in the same photo. Subject selection seems unable to locate the subject in any other image. I've attached two images, image 1 with the previous perfect selection and image 2 with the new, far from perfect selection as part of the background and foreground has been included in the selection. I'm running the latest update of Lightroom Classic on a Mac Studio Ultra with Monterey 12.6. Any help would be appreciated!

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2 replies

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champagne_super_photo
Participating Frequently
October 17, 2022

Exactly describes my issue that's appeared in last 2 days (aside from I'm on Windows 11), following an update of my graphics card to latest version (Radeon RX 6600).

Never seen this issue previously, but something is definitely wrong with my subject and sky auto selection.

C
champagne_super_photo
Participating Frequently
October 17, 2022

Might add that I've tried disabling GPU in preferences, and re-installed Ligtroom 11.5. Same issue remains (all images)

C
champagne_super_photo
Participating Frequently
October 17, 2022

"I've tried disabling GPU in preferences"

 

Unfortunately, Select Subject/Sky doesn't obey the setting of Preferences > Performance > Use Graphics processor, though it should.


Managed to get the previous AMD driver installed again now and can confirm that it works fine for subject/sky selection, and the latest AMD update doesn't work (RX 6000 series).

Sorry I did post the system info previously, but maybe rejected as too long for a post? Have attached txt file now.

Thanks for your help!

    johnrellis
    johnrellis
    Legend
    October 15, 2022

    Please upload a sample problem image to Dropbox, Google Drive, or similar and post the sharing link here. We can see if the issue occurs on other configurations or just yours, narrowing down the problem and pointing towards a possible workaround.

    L
    Libby CaamañoAuthor
    Participant
    October 17, 2022

    Hello... Thank you for your reply.  This is definitley not related to a specific image. The same issue occures on all images throughout my catlaogue  and I have now tried subject selection on the images that I posted alongside others, on a pre M1 macbook and there are no issues, a perfect selection. If there are any work arounds, I'd love to learn about them... Thank you.

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