Some days ago i uploaded DCG to a dedicated server. DCG uses Tonic's VVS to spawn vehicles right at a marker. Today there was some weird behaviour at the vehicle spawn. After all debugging it seems like there is something stuck right at the spawn marker which only vehicles can collide with. Without being inside a vehicle one can run right through that obstacle (PhysX?) [screenshot 1]. Driving a vehicle you will collide to an invisible obstacle, which seems to be some desynced bounding box of an absent vehicle.
VVS - http://www.armaholic.com/page.php?id=23020
DCG (3.0.9) - http://www.armaholic.com/page.php?id=27675
screenshot 1 - http://i.imgur.com/mJguYMj.jpg