I found a glitch today while practicing the All Bunnies category. After finding Bethany I for some reason turned invisible and was teleported to just inside the wall next to the purple cube that took me up to her. I'm going to try and replicate this again and see if I can find what triggers it / if it is at all useful for out of bounds movement. It's the first time I've encountered a glitch like this in the game, so not sure what would be possible if I can replicate it.

Has anyone else come across something like this?

Yes, I had this happen during 2 of my practice runs. I have a feeling it has something to do with how you jump through the one-way wall and then enter the collection cutscene

Interesting. I haven't been able to get it to happen again, but I have only made a couple of attempts. Glad I am not the only one who has seen it though.

Happened on my very first All Bunnies practice run as well. I jumped straight up into her from below, maybe that's the trigger? (normally the game tries to place you right or left). I was teleported on top of the purple block, was invisible, and could only shoot up (up may have been the last direction I was holding). I was able to jump out and everything returned to normal.