I'm finding one of the Minstrel advancement quests impossible to complete due to a possible bug. At level 30 I recieved the instance quest "A Minstrel's Hope", which is begun by talking to the NPC "Leigh Putnam" in Trestlebridge. I can enter the instance and begin the quest, but after achieving the goal of the quest, I am told to talk to Leigh Putnam again to finish it, while inside the instance. The quest log says she should appear in the area, and other NPCs direct statements at her, but she either hasn't appeared, or is hidden somewhere I can't see. I've searched the entire area, exited and re-entered the instance, and even canceled and re-started the quest, but still can't find her.
Hoping someone can point me towards a solution or just something I've overlooked.