Msfs 2024 error code "307-400-00401"

[PeekingDragon]

@PeekingDragon

Developer mode cannot be enabled in settings to check some deeper things like pointing to a proper airplane (in my case mission wishes to use Viking Air Limited, a De Havillan DHC-2). And there’s nowhere to change it.

Created a follow-up as the issue is live for some of us MSFS 24 Campaign first flight error 307-400-00401