I queried the forums to see if this was happening to anyone else and found this.
For me, there is no problem when the crew boards or leaves the aircraft by gate. But if the airstairs/vehicle are used, the stewardesses walk down the stairs and away from the aircraft, walking to the area when the GSX vehicles came from originally. This sometimes can take a long, long time.
Then when the ladies disappear, the pilots will disembark and board the vehicle.
Not sure what's happened. Will continue monitoring
I'm using the same aircraft - Project Airbus - that I've always used. GSX has worked without issue, this one is a bit odd
P3D v5 - latest HF