UPDATE: Again I'm experiencing the issue where the cooldown to watch ads for rewards says it has over 1k hrs before its available again, but now I'm also experiencing severe crashes at all points of the game. It's almost unplayable now. It's a fun little time sink, but yes the UI is really janky. Also just this week started to experience a weird issue where I my choice to watch an ad to advance an exploring dweller or whatever says it's got over 900 hours to refresh?