Sometimes the little map at the top that shows which towers/walkers are still up doesn't update correctly and will still show some guardians are up even when they are not. I don't know if its only a spectator bug or if its while playing as well (because I'm not usually looking/tracking hard enough in game to tell/remember).
edit: heres an example of a game I'm spectating right now
edit: heres an example of a game I'm spectating right now
