I've been hearing from a number of players on Xbox na that items, experience, and quests keep spontaneously rolling back by at least 5min. There seems to be no reason of warning things just reset. With the event going on this seems like something that should be looked at. One player said it has happened no less than 3 times today, and their event tickets and everything went poof and were back to where they were 5min ago, this was after one of the spontaneous load screens while in those zones.