Hi Wim,
I vaguely recall encountering this issue when I first had FM 2020 running under Win11/ARM on MacOS via Parallels.
Only because you did not say so explicitly, did you do this?
- From a Windows 10 installation, copy "C:\Windows\System32\atmlib.dll" to the same location on Windows 11. (Be sure to copy atmlib.dll from "System32", not the version in "SysWOW64").
I don't believe that FM will even launch if it does not detect "atmlib.dll". But copying the "wrong" version might possibly be the cause of your crashes.
HTH!
-Alan Houser