I'm stuck. I can beat this room just fine
but after that, I can't enter this corridor. I think the rabbit spawns a pixel or two too low.
Windows 7, issue reproduces on both 1.3.0.2 and 1.3.1.2.
Yes, holding left during that transition spawns the rabbit inside the corridor, and lets me enter and exit freely. The easiest fix is probably adding some invisible blocks under spawn, it's not like you can legitimately touch those tiles.
Other than this bug, excellent game.