I'm running FSX-Steam and PDMG aircraft. GSX installed, when I request services, the vehicles arrive, 40 feet in the air! The guys pushing the carts that should be going from aircraft to catering truck, are in the right place, they enter the plane, then step out with their cart in mid air, then back into the plane. Other figures, wing walker, cones etc. are on the ground in the right place. Just the vehicles are up above the plane. This happens at default FSX airports and 3rd party airports. I know I've done something wrong! any ideas on how to fix it?