I was playing on Brave, but I've run into this same bug on my own game on Firefox as well. It's an engine problem as far as I know.
I mean don't get me wrong, I'm sure the game is beatable, if I certainly locked in and really persisted. I think my complaint really is that I stopped having fun after so many tries. It was punishing to the point where I didn't care to finish the game anymore. Hopefully tweaks after the jam will change my mind.