Fast travelling doesn't fix it, saving and loading doesn't either. Anyone familiar with this one, solutions perhaps...?
I have a slightly different bug involving this. I found Scribe Faris and everything. After you find him you pick up a holotape that you have to listen to, which completes the mission. However, I've listened to it like 4 times and the mission won't show as 'complete' in my Pipboy. It's still showing up as an active quest even though all of the quest objectives are checked off as completed.
I'm playing on PC, so it may be coincidental that these things are happening in the same place. But it seems like there are several other cross-platform glitches that a lot of people have been experiencing.