Version 2.7, updated this morning.
I flew into FSDT KLAS, and on the final approach segment I selected gate B12. I taxied in and parked as directed by the marshaller. But when I tried to toggle deboarding, I was told I was at the wrong parking. I chose to cancel the parking assignment, then went to customize the assignments, and sure enough I was at gate B12. Cancelling out of the editing mode I was able to select services and deboard the plane, and it remembered the number of passengers I'd previously boarded.
Weird, since all the ground support equipment was there, that it thought I was at the wrong parking spot.