Ventura updated to 13.3.1 a few days ago - today I cannot use LR Classic (latest version) which has always worked without a problem over the years. On my M1 iMac 16GB I downloaded a few D810 RAW files and LR started flickering, develop module will not open and I had to resort to "force quit" to close.
Nasty...
I have learned to to upgrade MacOS to quickly. I usably wait several weeks before upgrading. This is a lesson I learned when I encountered printing issues right after an OS upgrade. Before the upgrade everything worked fine; after the update unable to print anything. Worst thing was that neither Apple or Canon support answered my cry for help...
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Pascal Hibon
Flickr: https://www.flickr.com/photos/phibon/
Website: https://pascalhibon.net/
I re-installed LR Classic and that seems to have resolved the initial issues: freezing/flickering, unable to access develop, having to resort to force quit to close.
I have not had a chance to try all of the new features.