I had been noticing enemies were rubber-banding(appearing in one spot before appearing in another) in my Gambit game, when I suddenly got booted to orbit with a guitar error. It only started happening in the second and third rounds of the match.
Me and a friend were getting the Guitar error. I looked into it and the only thing I saw was that if you're using an emblem that tracks something, i.e. Triumph Points, Crucible Wins, Strikes Completed and so forth then the game will mess up sometimes and give you the Guitar error. I've switched to a non-tracking emblem and haven't had it happen since.