Very nice looking game :) I kept softlocking myself, up to the point where R didn't help (if you use state machine maybe doll got locked in some state where she neither reacted to key turning nor arrows). I must say I only discovered arrows in a 4rd level (it was fourth one I think, the one with jumping right on platforms and the reverting and jumping left, just below... it is my fault though, you even wrote about that in game description). Pretty interesting twist on movement, original (in a good way I think, it was hard, but by design, so it's advantage). I liked it and had fun despite only going till near the end of fourth level :)
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It was the 4th level, it occured for sure when I went to the right side of a level, changed direction, then went left (including jumping) and it kept locking when I was probably trying to change direction while doing something with my mouse with the key near the left wall (so I was stuck going left, tried either "charging" or jumping with the key and pressing arrow right to change direction from left to right). One time I also hardlocked (rather than softlocked) while jumping and falling (no clue what input I might be doing exactly at that time but it's possible I was still clicking LMB or RMB on the key), in both cases (near the wall and falling) even pressing "R" to reload the level did not unblock, the respawned doll was still not responsive, only page reload to reload the game fixed it. From my point of view as a player this was not a big issue for a jam game, don't worry ;)