Gate animation broken

[a completely inoffensive name]

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.