Champions of Legionfall- Help!

Hey guys, i decided to finish up my class mounts for my DK and paladin.
My paladin is already all done with the class campaign and has all the followers,
I am able to accept the quest Champions of Legionfall, but when i get to my order hall- nothing happens.
I have the order hall title, I started Breaching the Tomb and completed it up to Defending Broken Isles. I have met all the pre requisites that i have found… am I missing something?
I do see in my followers tab that the last follower is yet to be unlocked…

I believe that you have to complete Breaching the Tomb.