Hi. I've been doing manhunt and third key seems to be bugged for me. I hand it in in the base of operation but nothing happens. Key is gone from my inventory but quest is still unfinished. Tried restarting the manhunt, just did all 3 again, no problem with first two keys but when I handed in the third key, same thing as first try. Key is gone and quest still want me to hand the third key in. Any suggestion what should I do?