Mundo Mundo Bug

Today i played a game as Mundo, and in the champion selection i noticed that i had Mundo Mundo ( i have been absent for a long time ), so i chose to play with that skin.. I was Duo with a friend.. I could not myself see my W, and that became quite anoying and distracting.. i can confirm that others could see it, but i could not..

Hope a fix can occur, since it's a cool skin