boats teleported to roofed trees when placed it at the river in multiplayer mode.

when i playing multiplayer with my friend, i want to cross the huge sea,then i tried to placed a boat.and the boat just teleported to the roofed trees,no one break my boat,because my friend was right behind me wants to have the same ride.

step to reproduce:Play multiplayer,crafted an place the boat in the river.this not happened to the server host.