Cannot properly load catalogs, LR crashes

Question

When I open a Lightroom catalog in LR classic (version 15.3.1), the histograms and 1:1 previews of the images won't load. When I try to do anything, Lightroom will freeze and crash and I'll have to force quit. I’m using a Macbook Pro updated to Tahoe 26.5.1, I've cleared video and RAW caches, cleared preferences, shut off GPU, checked the integrity of the catalogs, optimized them, uninstalled and reinstalled LR, and restarted my computer.

dj_paige · Answer

Try unzipping a recent backup copy of your catalog file and see if that will open.

Do you get an error message? If so, please tell us the exact word-for-word error message.

Also, please clarify, your title does not match your text, is the problem with “catalogs” (plural) as your title implies or is the problem with “catalog” (singular) as the text says?

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