Tumbleweeds dissapearing when they hit the edge of the map

I have a single question for you... why is there tumbleweeds in Don't Starve Hamlet? Are you console-ing them in? Or do I not know something about the game?

They said, "Hamlet compatible RoG worlds", so either a RoG world that was set to be Hamlet compatible at creation, or one that was created by exiting the Hamlet world via the SkyWorthy.

I have seen the same thing, but I assumed that this was intentional behaviour.  If a tumbleweed hits the top of a cliff, you'd kinda expect it to go over and vanish, rather than stop as if it hit an invisible fence. 

This should be fixed in the upcoming patch.