while I was attempting to upgrade some artifacts I experienced quite a bit of lag. I closed on the game and opened it back up to find that around 90% of my artifacts even the ones that were equipped on my characters were suddenly gone. I have tried reloading the game to see if they would fix the issue it does not. The items are still gone. That is dozens of hours and no small amount of real money worth of items and silver just completely absent from my account.