This is a side quest for the Railroad and it is bugged for me. Can't complete it. I got the Boston Mayoral Shelter assigned as the safehouse for this mission from Dr. Carrington and I had cleared it out prior to receiving the quest. Didn't have any quest markers show up when I activated the quest, but since I knew where it was I went back and recleared the synths it spawned. Afterword, I did not receive a successful mission complete. The quest still remains in my log, doesn't give me a marker, and the Boston Mayoral Shelter is permanently cleared now.

Just curious to see if anyone else had this bug and what the status is on addressing it. I didn't see mention in the next set of patch notes, but I'm hoping it gets knocked out soon