Is My Project Corrupt & What To Do About It

I installed Mac OS Big Sur (mistake, should have waited) and I have Scrivener 3.2.1, and I have several different Scrivener projects, mostly saved on Dropbox. I’ve had no problems with this configuration for years, but all of a sudden, one of the larger projects seems to be corrupt. I’ve been able to open other projects, but not the one I really want to open.

So, is there anything I can do about a corrupt project?

Possibly … … l-not-open

In a similar situation I would restore from the backup, most recent one hopefully just before upgrade.

FYI my upgrade to Big Sur broke nothing that i can see in my Scrivener files. So there might be some other root cause of the corruption you experience.