I'n starting off on early quests in Fallout Shelter.
Inside the quest destinations are rooms that are blanked out by brickwork, hoarding etc and you can't see inside them or get your quest party in there. I've cleared every room, defeated all enemies, spoken to any characters and the room is still blocked & the only option is to return home. On the first Paula quest this room opened itself but I don't know how. On the second one there is no key but there's a blocked elevator which I guess goes into it. How do I get in?