Winona catapults are broken?

This hound farm used to work, idk why the catapults won't attack the houndius shootius anymore. If they patched this intentionally that is incredibly lame. I tried using glommer for the targetting and the catapults killed it.

Edit: probably the houndius shootius killed glommer, the catas don't do damage to friendly mob.

Tried using chester and that destroyed the entire farm because of him hopping around when the fire hounds died. RIP every hound farm