I didn't find that crashing glitch during my testing, guess I should have been more thorough. I have no idea why you resting would cause a crash though, as it's literally just a boolean check if an enemy is within a set distance. I really appreciate you playing and giving me feedback.
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You're right, I was mashing the buttons and thinking about it it was probably related to blocking, judging by the blocking animation especially (I got the crash a second time in similar conditions), it might have been the very first I managed to block or I hit in the same time as I blocked or something like that.