When gates don't seem to match in an airport, the thow things you need to check are:
- The name of the AFCAD in use by GSX
- If a GSX profile has been loaded from an airport.
BOTH informations are in the same place, the parking customization page. If the AFCAD in use is not the one that comes with the airport, it might be caused by some other scenery in conflict, that page should give you an idea of what's going on.