While attempting to play through this level, where you have to jump across the gap, by using a spring plate, and a safe, to get to the other side...just to spring yourself back, with 2 more safes to get the switches and move on to the next level...there seems to be a bit of an invisible wall, which I cannot get past...I could definately use some help on this issue...
Yeah, I think I experienced this and had to search it up on YouTube. The key is.. when you shift to the Heavy Dimension, just stand on the box and switch to the Fluffy Dimension and then *this is the important part* DON'T move. Just leave the controller and you'll find yourself on the other side.
I remember playing this level two days ago and getting pushed by a somewhat "invisible" wall that doesn't allow me to get past it to the next area. Turns out I was moving my character while in mid-air.
Hope this helps!