Hey Guardian. Unfortunately this happens every Season with the Seasonal Activity. Since Bungie asks the players to complete over and over again the same Activity many times with some slight variation here and there, after just 2-3 weeks it becomes boring and players start to rush it to get it over as fast as possible. Nowadays there's this bug/glitch (also in King's Fall) where when someone goes too fast and arrives at a new check before anyone else, doors remain closed or the step doesn't start correctly =/ which causes players to leave the Activity and start again. Thing is that the glitch is quite inconsistent, like sometimes it happens and others everything just works fine. I'm afraid there's no much to do about it =/ you can't stop people from rushing...