Like I said, I don't have the issue anymore since I installed the vehicle update and I can't recreate it now.
However, when I still had the problem I tested it at the following airports:
Aerosoft Amsterdam, gate D57;
Aerosoft Innsbruck;
Aerosoft London Heathrow, gates 420 and 421;
Berlin Tegel, several gates, this scenery:
http://library.avsim.net/esearch.php?DLID=142811;Default Brussels airport (EBBR), several small and medium gates.
The following aircraft were tested:
PMDG 737NGX, B738 model;
Default Boeing 737-800.
Other information than this I don't have. As I tested it with quite some sceneries, I assumed it happened everywhere so I didn't test it at any other default airports. I hope this information is of any value to you.