Gray Thumbnails

[SEBASTIEN26074807cq60]

hello since few days the thumbnail in Lightroom classic are grey (no picture)
i do the last update 11.5 => same problem
thanks for your help

best regards

[dj_paige]

Thumbnails gray could be this: https://www.lightroomqueen.com/how-do-i-change-my-monitor-profile-to-check-whether-its-corrupted/

[F. McLion]

.. and tons of other entries, a quick search for gray thumbnails delivers:

https://community.adobe.com/t5/forums/searchpage/tab/message?advanced=false&allow_punctuation=false&...

[Califdan2]

I'm on Windows so just passing this on in case you're on a Mac.  Apparentlyt recent Mac updates have changed security necessitating the LrC be given "all disk access".  As I recall, grey previews was one of  the symptoms