The first key puzzle seems to have stumped almost all of the players, so I'll definitely be trying to work out where the design went wrong on that one! I intend to make a post-jam update and I think I'll end up swapping several rooms so good feedback.
The camera clipping bug is already fixed in the post jam version... The SpringArm node has the default margin set way too low for how it works, which means at grazing angles of any flat surface it clips through. Good catch on that one!
Thank you for all the feedback and congrats on your cool submission as well! :)