Ran VOG hm last week with someone who never ran it. Breezed through it no glitches. Soloed Crota normal on all characters last week. No glitches. Ran hm last night no glitches. KF. I have seen some weird stuff happening. When I do see it I look at everyone's connection. There's always at least 1 person with a red bar. When everyone is green it goes smooth. Lag just like in pvp is most likely your fireteams culprit.