Masteries bug
I had a bug where I queued with my friend, joined champ select and had his masteries, when switching it said something along the lines of "error report message." And used my masteries I had selected the game prior instead of his.
I had a bug where I queued with my friend, joined champ select and had his masteries, when switching it said something along the lines of "error report message." And used my masteries I had selected the game prior instead of his.