Gate animation broken

I noticed that when battering rams attack gates, the animation of the ram hitting the gate has the gate essentially move backwards so that gate is no longer attached to the walls and then it reverts back to normal at the end of the animation. I have only attacked gates of hellenistic cities with wooden walls so far so I do not know if it is a problem with all gates. I will try to get a twitch recording of it later as evidence.

It also happens when the gate opens, it 'teleports' backwards.
When you ram down a wall (I only Greek wooden walls so far) you don't see an animation when the wall starts breaking down, its another mesh instantly.

Attachment 14163