Guild Wars 2

During the Living Story 3 mission Confessors Stronghold when I try to defeat Justiciar Adrienne - Canach, Marjory and Rytlock do not help me fight the white mantle Im left alone.

Playing as Human Revenant

Same exact thing happened to me. Made the battles very hard.

I completed this eventually.

I tried again and it started to work… a little. Sometimes the henchies would stop attacking and just stand still. I had the same problem in the previous mission with Caithe.

At best they would be tickling the enemies with feathers anyway.

True, but they make a good meat shield and stop most of the aggro on you in this mission. Otherwise it can be a real pain.