Lightroom hangs on generating previews on my M1 Macbook Pro. The only way to fix it is to force quit, restart Lightroom and reset preferences. Then it happens again a few days later. I have switched off GPU preview generation, but it hasn't helped.

Question

I’m working with lightroom normally, then suddenly previews won’t generate. If I try to import from an SD card, I can’t see any previews, and in normal grid mode or viewing, previews are not available. When I go to quit Lightroom I get the spinning beach ball and after a few minutes I have to force quit Lightroom classic becuase it has hung.

I have turned off GPU assistance, trashed the lock file, and the previews file, reset preferences but this problem keeps coming back.

Arnold-Norway · Answer

Where is your catalog folder? Are you running some sync service on that folder?
There may be a problem with your previews folder, Lightroom Catalog-v15-Previews.lrdata. You may try to rename the previews file to something like this; Lightroom Catalog-v15-Previews-x.lrdata. Then restart Lightroom Classic, that will be forced to render new previews. If that is successfull, your current previews may be the problem.

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