Exactly, the door configuration in the FBW is still the same as the default A320, with the rear cargo and the front service door not animated, because the default Ground services in the sim only support one baggage loader and one catering vehicle.
We decided to configure these planes as if they had doors, if only to show GSX *can* support more than one vehicle at a time, which of course would cause seeing the bags and the catering guy going through the airplane bulkheads. If you don't like the effect, you can always reconfigure the airplane in GSX and set "No door at this position" for the rear cargo and the front service.