oh sorry about that, I thought that bug had been totally fixed, I will give it another fix... 100000th time haha.
about the invisible boxes, yeah I didn't have time to make all the collisions disabled I just made them invisible XD, I'll see if I can fix that one too before the deadline for bug fixing, although it doesn't make the game unplayable. I enjoyed working on that theme a lot, I might make a proper game of this demo at some point :)