Ignore follower dungeons while progressing through the story, queue up normally instead.
As you progress through the story of each zone, you will reach a point where you have to complete a dungeon. You are given the option of queueing for a follower dungeon, which may seem quicker due to queues, but it's a trap. DON'T DO IT!
First of all, you will need to deal with Austin Huxworth, the 360 no scope BM Hunter who will pull anything in a 2 mile radius with his obnoxious strafe jumping.
Then you have Crenna Earth-Daughter, the most useless healer imaginable. She likes to throw herself off the side of cliffs when she's not busy joining Austin in pulling everything you're trying to avoid.
Do yourself a favour, wait in the queue and do the dungeon the normal way, you will still get credit for the quest when it's finished. #entertainment