I've been using LightRoom Classic for several years without significant problems, but recently (almost two months ago now) it began to crash my computer. I was running MacOS 10.11 but hoped update to Big Sur would fix the problem: it did not. Then I waited for the next LR update but it does not change the situation.
Most of the time LR starts slowly but then appears to be working. As far as I can tell, Library mode is working normally. I start in Develop mode with pix previously loaded, but after a few operations it slows down, then freezes, followed usually by the computer crashing. No error message appears, although someeimes screen colours show during the process. Every other app on the Mac seems to run well, including Photoshop and Bridge.
I've tried everything I could think of, and also several ideas from other community posts. Now I'm out of ideas: either I fix the problem or cancel my sub and search for another raw editor.
exactly the same problem for me !! it also crashed my 4T back up Harddisk 😞
My LR Classic has got bugs in the develop module too. Sometimes it crashes my mac. Often I get a "spinning wheel of delay" and it takes ages to respond, especially when I am using the radial or graduated filters. There are also bugs with the star rating, which does not show correctly in the develop module. I would prefer to go back to the older version of LR classic which I had about 2 months ago. Now I have got 10.1.1 but the bugs have not been fixed.
Same problem after 10.0 to 10.1on Big Sur (late 2015 5k retina iMac). I rolled back to 10.0 after it was clear that Adobe didn't seem to be able to agree or fix the issues. Worse still was the 10.1.1 update, which I thought would be a bug fix - it wasn't. Can someone at Adobe confirm if the problem is recognsed yet - there are multiple postings on this problem with the Develop mode?
Since this forum is primarily intended for customer to customer support/help it's unlikely that Adobe will respond. However, there is a forum provided by Adobe for reporting issues such as you're experiencing. The forum can be found at https://feedback.photoshop.com/topics/lightroom-classic/5f5f2093785c1f1e6cc40872
Alternatively, you can add you feedback to an existing thread on the same subject. This thread appears to be the most recent https://feedback.photoshop.com/conversations/lightroom-classic/lightroom-classic-v101-crashes-my-ima...
I think I have found a workaround by accident.
When looking at similar problems and their solutions, I noticed a recommendation to deal with a similar problem by turning the setting for the graphics processor to OFF. This seemed counter-intuitive and I had no expectation that it would work but I began trying the effects of each setting for the processor. To my surprise, this one worked.
The startup still seems somewhat slower than in the past and some edits may be a bit slower, but the overall LrC operation is definitely usable and - most important - no more crashes.
This fix may not work for all graphic chips; mine is AMD Radeon R9 M380 2 GB. But for those with similar problems it's worth the try (although I do hope that the conflict is resolved in a future update).
Have you tried the new Big Sur update v 11.2 released yesterday?
I am using an iMac 27" 5K mid 2015.