[TB3]

You need to have a //#CLIENTSIDE
setshape 2 and
also i have the same problems so try using smallter interverals of the move command because for some reason even on a gmap data doesnt get sent correctly when crossing level boundaries O_o but using small interverals of the move command updates its x/y /movement better.
Also to prevent getting thrown outside of the x/y boundaries of the npc use something clientside to keep the players x and y inside of the boundaries of that object as it moves.