Hi so I've been working on this game for a while, but I keep having this problem and I can't seem to get it to go away. My game is an infinite scrolling type game where you score more the farther you can go. There are enemies and blocks that come at you from the right side. The brownish wooden boxes are supposed to hold the enemy heads back, BUT I keep having this problem where as more and more enemies pile up, they seem to squeeze through the actor and I can't seem to stop it no matter what. I've tried messing around with densities, friction, bounciness, etc. but I can't figure this out.
I linked a short video so you could see what I'm talking about. Keep in mind it seems to only happen after the enemy head has been behind the box for a while, or if a bunch of them stack up.