As the title says. In one session I freed two different hostages but each time when the door has opened the hostage just stands there and still call for help. Nothing else happens and the quest/mission is not completed despite opening the door for them.
As I said I just tried this in one gaming session. I shall give it a try again in my next gaming session but wanted to report that.
Like The Division 1, this game is very addicting. I love it so far. Good job Ubisoft.