I'm not able to re-create that bug. Which browser/OS/character were you using?
I tried to implement showing the vector field at some point but it was too distracting unfortunately, I could try again after the judging is done though.
I was on chrome/windows. By 'character', do you mean character in game? It was Lily on contract #25 on my second attempt of that level, I may have been spamming blocks a bit before it happened. I'm guessing here, since it went a bit fast, but I think I may have just beat the witch and that it crashed whilst transitioning to the cutscene.