After completing The Thing in the Walls story quest, I continued in the story to complete Viper's Nest and Harbingers of Hate.  Thing in the Walls was still showing in my quest log, trying to send me back to the monastery.  Before finishing the last two steps of Terra Incognita, I accidentally traveled to and started the mission for Walls.  Completed  Incognita, and now Van Wynter is still showing the "!" for the quest over her head and delivering the message about arriving at the coordinates and Maldor's message about Draken.  

Now, she's stuck in a loop and can't be used as a vendor.  Every time I restart the game, she'll deliver the quest lines, then after Maldor's message and her  "augers" dialogue, she's stuck with the "!" and unable to be interacted with.  Need help resolving this, as I'm now stuck unable to make the credits needed for modifying gear to continue with Drukhari missions in Grim Harvest.