When I switched to an aircraft, I could start the handling while it was taxiing. If I do it, the stairs and the GPU set up right on the taxiway, but the aircraft continues and parks at the gate. The aircraft parks and all other handling vehicles set up correctly, but the stairs and GPU are sitting on the taxiway. From my experience this only happens at Bari, and only happens with a Transavia aircraft. Here are pictures:
Aircraft parked, servicing and you can see stairs and GPU on taxiway
The pax magically walking on air to exit the aircraft.
