Blood Carriers on The Manor Ramparts - Unkillable

I have had two friends tell me they experienced this as well.

The Blood Carrier mobs will keep auto-rezing after being defeated. I guess you can kill them, you just cant make them stay dead, though they did seem to take a crap ton more damage to put down.

So far the only fix has been to exit and reset the instance. It has yet to happen when I have had a character with enough cold to try shattering them.

i also experi9enced this on my ranger today. I think it was not a thing on my monk playthrough because he shatters the entire group, no body to rez. However, lightning arrow ranger does not and I spent a good 15-20 minutes trying to figure a way to kill them using the only cold skill I had which was Freezing Salvo. Unfortunately it did not shatter them and they just kept coming. It did seem they got tougher to kill as time progressed but it took a while to notice that. I ended up having to die to reset the monsters; hopefully this is a one time thing and I can get through the level without it happening again.