MCD2 Boss bug

When I was fighting the twisted warden, it hit me out of bounds of the ambush area onto the portal, so i was able to just shoot arrows at it until it died without it being able to reach me. Something similar happend when i was fighting the prime enchanter, it hit me off the platform so i respawned near the pistons which launch you to it, and when the prime enchanter tried teleporting to me, it teleported into the void instead and died