IDK why but when i kill the booflos they stay like this.

They are also extremely durable, i killed him with 250 strenght potion effect, but without it they aren't killable at all, they regen faster than i can attack them.

Oh and i just realized they also ignore me even if i hit them.

This is unlikely to be an issue caused by Endergetic. You'll have to isolate mods to determine the cause.

Well on the previous update it worked fine so ill probably use that.