I'm on an M1 mac and having the same issue as others here with xcode 12.5. Compiles fine then crashes on opening of organizer. Then opening the organizer for anything crashes with 2 secs. Going back to xcode 12.4 solves the problem because it can compile and open organizer without any issues. But using 12.4 does not fix or temporarily fix 12.5 organizer issue.

more info here https://developer.apple.com/forums/thread/678986