Wow, even with all tests, all updated versions, I still foudn a bug! You don't know how its like finding a error on a genuine incredible mastered and perfect thing!
Well ets get to the point.
When you are the green guy

(I thik this one) when you are at the room "A Room", if you have gone there after "fireproof"
if you go the way the arrow is going
http://i.imgur.com/c8i97XK.jpg you will be stuck and if on a moment you try to flip you go through the wall and end up on that what I call "destabilization" of the polar dimension