Quest Glitched out preventing the ability to move forward in the story.

[NevermoreCrow]

Worst case scenario you could always just abandon the quest and pick it back up again/do it again will likely fix any issues.

as I said above, its a main story quest, its the only reason I am doing it anyway. I have to do the cancerous quest chain before i can access the expansions content,

you can not abandon main story quest.