So just today I was sieging someone and the base owners decided to cave-in all over the siege engines. We've cleared it up a bit, though some boulders like in this image got stuck inside, becoming unbreakable because of the large hitbox of the ram.
That boulder has made the ram stuck and unable to move, just after spamming it multiple times it moved just enough so I could break it, though the ram suffered a fair bit of damage as a result of the mouse spamming. I imagine it's like that because of the change to the rotation of siege engines and ships.
Is it the intended behavior? Because it shouldn't be.