Just joined a game of ARURF, in the champ select I got Mundo. Traded with a friend that had zed. He got Mundo, I rerolled Zed got Kayn, someone exchanged Wukong (my fav. Urf champ) for the Zed i rerolled. *BUGSPLAT*. Luckily I could rejoin, couldn't exchange Kayn for Wukong, could only see all available, game started, I got Kayn in the last game of URF i get to play for probaply the rest of the year as you wont make it permanent.
FIX YOUR GAME