Nocturne Tail

As usual, after i play a small amount of games with nocturne, hes tail dissapears. I dont know what causes this bug. Happend to me when i had another pc, and after 2-3 games the tail its completely gone . Its quite annoying since the tail defines the character itself. Its like a part of him its missing, wich looks wierd. Same happend today. Changed my Windows, and after 2-3 games , the tail its gone.

EDIT: Just went to practice tool, and hes tail appeard. After i moved , the tail its gone again. Started another game , and the tail wasant there anymore like the previous game.