Thanks for playing an recording the play trough that is very interesting for me to see how others play it. Maybe the last puzzle was not clear enough. The idea is that you kept your mouse button in the marker to follow, if you follow correct (70%) you seal the crack, if you don't follow or make to much mistakes it won't seal. But since one of the ideas is to not follow the pointer and let it run its course or just leave it still worked out well for you. I don't want to give to much spoilers but doing at least 1 mini game the correct way and 1 the wrong way you get the medium ending.