This appears to be the same issue I ran into last month here — Using actor in iOS 14 crashes on initialization using Xcode 13.2
I can confirm that my app works when run initially from Xcode, but terminating the app and relaunching from the Home Screen crashes with the same 0x0000000000000000 EXC_BAD_ACCESS error.
It seems like the issue is reproducible / others are experiencing the problem now but I'm happy to help with any debugging as well.