An issue that has been known by the playerbase since ITL launch and NEEDS to be made aware of by Bungie, that is absolutely detrimental to general gameplay and people doing challenges. If you swap characters while an activity is completing and you get the "xp bug," which is something that occurs commonly during raid encounter completions but can happen anywhere, which pauses your XP gains for a few seconds / minutes and doesn't update the mission objective, it error codes every single person on your friends list, no matter if they're in your fireteam or not. Every single person you have added, through bungie or personal platform, gets pony'ed. I personally think Bungie needs to be made aware of this issue and get it fixed ASAP. This can be used in many harmful situations if people know how to abuse it. Especially during day one raids, imagine if someone were to error code someone that was about to win world's first? A solution NEEDS to be found.