I came across a fast travel bug after killing Kellogg and exiting the building where Kellogg was located (forgot the name of the place). When I exited the building, I had two surprises, first being the Pyrdwen flying gloriously through the sky and secondly my fast travel wasn't working.

I was pretty upset about the bug, hoping it would go away ASAP, little did I know that it would be stuck with me for the rest of my play through.

So at the time I just ignored it and decided to play 'hardcoe' and walk to all locations I ever needed to go to. Ended up pouring extra hours into game not being able to fast travel, that also included heading all the way back to sanctuary to drop off all the junk that me and my companion carried because we couldn't hold anymore junk.

After 4 in-game hours I decided to check the web and find solutions, I tried the listening post bravo terminal thing multiple times, it didn't work. At that point I just decided to forget fast travel and hope I won't ever need it.

After about 48 in-game hours I finished up the "Molecular Level" mission and teleported to the institute. I talked to a few people, got to know them and obtained the institute's first quest, where you go to a courser and aid it in capturing a rouge synth. If only I can leave the damn place...

Turns out the only way to leave the institute is by fast travel.

The game is literally unplayable since I can't get out of the institute and can't make any progress.

Just sitting here and hoping that patch will come out soon including fast travel being fixed

Summary: I'm stuck in the institute unable to fast travel because of this fast travel bug.