Complete the Trialmaster's Challenges Quest

The Trialmaster's Challenges Quest is bugged for one of my characters. I have completed any number of them, and I am not getting credit for the quest completion. I am now at a point of not being able to progress to maps, because this quest will not complete. Would appreciate any guidance.


Update: Not certain how it happened, but I continued running ToC's and it finally allowed me to move to maps. I think it may have been that once I ran an instance that was a higher level than my character, it worked. Had some Ultimates from my 91 Monk, so I was lucky. I'm thrilled.