Animals running through new walls?

[KaoRu]

Came back to the game after about a month or so and for some reason, this has happened twice now, when I replace a wall or extend the enclosures (like my Flamingos who breed like rabbits), the animals yeet for that new wall and go THROUGH it like it was never there?! I then quickly change it to a different wall and suddenly the animals can see it and stop in their tracks. Everything goes back to normal when I change it back??? I almost had 70 Flamingo on the loose.

 

[Arrakai]

This does not only happen to new walls. I've had plenty of animals walk thru concrete walls, even though there are no plants/toys/shelter etc anywhere near it. And alot of other people have also encountered this bug