Continously increasing game time

Anyone who mouses over me when I'm in a game tells them the accumulative amount of minutes I've played since that bug, I've had it for a few days and I'm currently at 80 minutes in game, I also have the problem where I can't mouse over someone else to see their time it gives me no time or if you want to see what it looks like it gives me this (--:--) that's right a knight, jk remove the brakets it's just to show what it gives me anyways thanks for the help it's not that big of a bug but a bug non the less, I still get all my things after playing a game