I have the same issue, the only way I've been able to get rid of it: Is to go inside the cockpit then go back out to outside view and it disappears.
Another issue I have come up upon, is the customization of the aircraft isn't being read properly. The jetways don't lineup correctly with the doors, same with baggage belt door locations. If you go in to airplane customization and change it to line up correctly, it'll work for that flight. But once you exit FSX and come back in to the same flight, it needs to be redone again.
Ron
