[GAMEPLAY] Audio for Cosmic Reaver Kassadin skin not playing out fully when auto-attacking

I do not know if this is with all skins or just his Cosmic Reaver one, since 10.4, Kassadin's auto attack sound has been bugged without fail, at least for that skin. I will be CSing in lane and it kind of throws me off because sometimes I'll hear it fully, sometimes the first half of the sound will play but I wont hear the ending slash and then sometimes I wont hear anything at all and it'll make me question if I even hit the minion or not. Please fix this rito, its my favorite champ to play and since this is the only good skin on him I'd like for it to be fixed. Thank you