Yes we had an unfortunate error for webgl build and when we try to fix it, the windows build started to have those weird issues. The plate of course supposed to have collision, just like the floor or the sink that is supposed to kill you. We actually beat the game in a weird way. If you try throwing a box from bottom to up after after you jump and get a height boost you can actually finish the game with that mechanic. I was planning to put a small video about it if someones intrested.
Also glad you liked our game and I agree it would be tons better with collision