Hi. I've mentioned that in the previous comments that said the same thing. This isn't an "error" in terms of something that is missing in the game. Sadly the game engine doesn't provide the stable collision system. Although, I wrote that to other 3 people with the same comment as yours, if you just follow the game and story, nothing would happen, but if you force yourself into places where you shouldn't force yourself, yeah, "errors" will occur friend, nothing we can do about it. Thanks for the comment.