I was doing the secret of the Storm Horns chain, and got to the final quest 'What goes up', but cannot progress the quest.
I talked to Kara Patwin, which directs me to the npc that gives the quest, "Sherrod Starym", however, talking to the npc results in: http://i.imgur.com/cA6crCI.jpg
On my quest journal it shows 'What Goes up' as complete, and I cannot abandon the quest either. If I try, it gives me a dialogue that says "You cannot abandon that quest because it is part of a story arc that is currently in progress (Bring word to Kara Patwin). When I enter the dungeon it also displays an error message that I not on the right quest. So I can't progress and can't abandon quest, and am completely stuck.
I did all the quests with a friend, and his chain progresses perfectly fine, no error messages for him talking to the npc or entering the quest. It's just mine that is mysteriously bugged.
Now he's stuck waiting on me and we can't complete multiple saga's that require this nor get the end ring reward we really want from this quest completion =(
Any help would be greatly appreciated.