Actually, it has nothing to do with "hit boxes". In those cases there was a script checking to see if someone or something was close to the NPC. Since the bouncing bug put the NPC 100 feet up in the air, those scripts could not see them, and they would never trigger. I've fixed those cases by increasing the height they check, and code has found the issue with the hopping NPCs. So the next update should contain both fixes.

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