Magically in this video, the error that plagued you disappears and you don’t talk about how to address it. I did solve it I suppose though. I realized it was the unbreakable blocks that were causing the warning, so I wrapped all that logic in an if statement (if tag == breakable) Maybe you do address it in a later lecture, but considering the error has disappeared in the lecture, I’m not so sure.
I think most people were getting the error in ShowNextHitSprite(), but it sounds like you are getting it somewhere else, because that method should not be called for an unbreakable block.