GAMEPLAY

So when I was playing Zed whenever I'd ult Nocturne, my death mark wouldn't mark on him even though he does not have his w up. In addition, I was playing with the skin of Championship Zed and, he was playing on Eternal Nocturne. I'm not sure if this could be a bug with just these two skins. The whole recap of how it'd happen is whenever I'd click r on him, the mark doesn't last on him despite him not having his w