Develop history missing / corrupt catalog?

This all started when I (finally) decided to backup my lightroom catalog, which I hadn't done in a very very long time (I know, very stupid). In the middle of updating, lightroom closes and a pop-up appears to say there was an issue with my catalog and that it needs to be repaired. Lightroom repairs the catalog, but once I open the new catalog, my develop history is 100% gone. 

After this happened, a new folder titled "corrupt catalogs" appeared, which allowed me to access my catalog WITH the history -- the only issue is with that catalog now, the AI remove tool settings, as well as the AI mask settings are gone, and must be manually reset. Given that I'd rather have my develop history, I figured I could live with having to redo some photos where the AI settings are concerned. However, whenever I go to back up this catalog, the same issue occurs: lightroom crashes, says it must be repaired, and then it repairs to new catalog without the develop settings. I feel it wouldn't be wise to go forward with that catalog if I can never back it up.

I read another post about develop history going missing after updating LR, but I don't believe I upgraded LR in this case? Is there any way for me to "import" or sync my develop settings onto the repaired, new LR catalog I haveto use now? Anyone have any similar issues?

Currently running MacOS Sequoia, LR 14.0.1