i'm at the stage where in the sewers i cleared out the zombies and i dont get the use the door popup i can see thru the windows barely that the npc did spawn but i just cannot access that mission anymore, restarting the game dont work, or progress in story and coming back after dont work.
#Unable to continue Hydro-puzzle quest
trail quarry
hasty grove
This has happened to me also av quit the game the re started and its worked for me this has happened on a few misions but when quiting and starting again it works very annoying I no but solves the problem