Ooohh ! Wasn't aware of the restart button ^^'. Thankfully I didn't - really - need it !
It was the level at 4:00 in the video, probably the one where being stuck between two doors is intentional !
Yea, I feel like with the mannequin becoming solid only when it's recorded part ends, it is impossible not to have clipping issues.. However, I was surprised at how difficult it was to clip through the ceiling, and couldn't figure out a way to clip through walls. You did a nice job with that !