Hatches can enter doors and trap themselves

This isn't really a bug, and existed before. Hatches can jump up to 2 tiles. It jumped on top of your door, and fell down.

You need to place 1 tile above your door, then it shouldn't occur.

Eh, it is certainly a bug. But probably not a high priority one. They will probably fix it eventually and not let hatches fall through doors and bottler platforms. I'm pretty sure they know about it though because it is exploited pretty heavily to move hatches around before traps.

It's the only way I can catch Hatches early game. Hopefully it's never fixed and it looks more like a feature than a bug.:) 

If I need a hatch to stay in an area I dig a 2 tile wide by 3 tile deep gap and put a ladder for the dupes. If it's in a room you won't lose the room bonus by leaving the doors open so if they get stuck I just set a dupe to open the door and leave it that way.