I use OS:
macOS 10.15, Arch.: x86_64, MuseScore version (64-bit): 220.127.116.118020600, revision: 3224f34
After a upload of a File in the online-database the desktop app crashed once.
From now the app crashes directly, wenn i open it again.
Only if i open it with an existing file it does not crash.
Every time the app askes me, if i want to restore the old session. it doesn't matter what option i choose.