Thanks again for your patience and for sharing details about this issue. We are currently testing a fix for Ember's questline, and once it passes it'll go into an incremental patch.
This is happening to me in Isobel's quest. Every time I abandoned the quest I have to start over and get stuck at the same spot.
Character name: Voodoh
Server: PC EU
Step: I searched for High King Emeric and then I have to go back to Queen Ayrenn.
I've tried leaving the zone but it did not help.
There was probably another vent active at the time. If it is like the Dolmens, then there can only be one Vent active at a time.
By the way can the team look at issue when you're previewing items at the outfit station out personalities applied refreshing to no personality state always, it's from at least last year and wasn't mentioned since.
One of my guildmates stated she had an addon that prevented it and didn't realize it. There was a setting in there to prevent it. (Sadly, I don't recall which addon it was.)