Yeah, I should of not let blocks collide with where a switch block is, i put a skull to mark their placement and the puzzle is solvable, but I can see the frustration.
On the reset, I agree, but ran out of time and this was a bandaid.
The switch is at the bottom-right - you have to play as the other character to push it, but the block appears above them.
I actually retried this a minute ago and it worked fine, it must have been a rare thing. Although I did have trouble with the hack not coming up with the other character for a bit.