Ever since reaching Arena 10 with my fiance and we did co-op as well, now neither of us can play co-op with one another and we're in the same clan. It seems the game breaks after Arenan 10 and you can no longer co-op with clan mates. It won't show clan mates online either when they're clearly talking in chat?? Which is very confusing, please fix bug so o can get back to enjoying the game.