The truth that happened after selecting airport elevation select the plane up to the right
That feature shouldn't normally used, unless there's a clear problem with the scenery and, it seems there's some kind of bug in the SDK that results in the GROUND ALTITUDE variable (which that function relies on ) not always returning the correct value.
Do any of these:
- Set the ground elevation manually to the correct value
- Edit the scenery .INI to remove the elevation = xxx line and Restart GSX, so it will default to the altitude reported by the scenery itself.
- Just remove the .INI file, if it doesn't contain anything substantial you want to keep.