Fillow I can see from the screenshot that you were on the opposite side, I mean that you lost your game, because of this issue. First of all, it came to my mind that this may have something to do with the deck tracker . Not sure how it exactly works, but I think that the deck tracker has to request some info from the server from time to time, at least about the opponent's rank etc. This idea came to my mind, because for today I saw the issue happen like 3 or 4 times, but I was never on the loosing side, never lost sync with the server. I'll install it now and will check if the issue occurs for me.