When the aircraft has been loaded at an airport of any choice the magnetic compass does not show up and does not show anything. At least most of the time. On some very very rare occasions and more accidently the magnetic compass does show up and works as it should.
See also same bug tracker report here with more detailed information:
https://gitlab.com/groups/flightgear/-/issues?show=eyJpaWQiOiIxMCIsImZ1bGxfcGF0aCI6ImZsaWdodGdlYXIvYWlyY3JhZnQtYnVncyIsImlkIjoxNzg4MTkzOTJ9
When the aircraft has been loaded at an airport of any choice the magnetic compass does not show up and does not show anything. At least most of the time. On some very very rare occasions and more accidently the magnetic compass does show up and works as it should.
See also same bug tracker report here with more detailed information:
https://gitlab.com/groups/flightgear/-/issues?show=eyJpaWQiOiIxMCIsImZ1bGxfcGF0aCI6ImZsaWdodGdlYXIvYWlyY3JhZnQtYnVncyIsImlkIjoxNzg4MTkzOTJ9