Infernal Repulsing Husk of Turtling (Cisco's Fantasy Medieval RPG [Ultimate])

My friend and I decided we wanted to do the dead army, we managed to get to wave 3 but unfortunately it spawned a creature called Infernal Repulsing Husk of Turtling. We couldn't kill it. This was due to it being enchanted with Lifesteal AND thorns (which if you don't know, if you have the enchantment thorns on it pretty much means that if a creature and or person hits you, they take damage too. Couple that with lifesteal and you are for the most part, untouchable.). We ended up leading it away due to not being able to kill it.

Preferably before we get questions, we tried fire and lava, didn't seem to kill it. It also has frostwalker so it walks on water. And it has gravity so building up is a no. The way we got to finally kill it is via letting it drown.

My question is however, has anyone else run into the issue where the enchanted mobs have different names? Not only did the IRHoT have a different name for my friend but we also encountered another enchanted husk that had a different name for her too. We play on Cisco's Fantasy Medieval RPG modpack.

I'd like to state that we are not new to modpacks at all. We've been playing modded minecraft for about a year now. We just got really into CFMRPG because of how fun it is to us fantasy nerds.