Loading screen bug. [CLIENT]

When I was loading into the game Suprise Party Fiddlesticks's name was displayed as Suprise_Party_Fiddlesticks_Display_name_Loading_Screen, something like that. I believe it happened to the Kog Maw too. I tried to take a screen shot but it didn't turn out right. It was a ranked game and let me know if there is anyway I can get you more information.