[GAMEPLAY] Mordekaiser's W is invisible af

https://www.youtube.com/watch?v=_zudLLiDH3A&feature=youtu.be

Here in the above video, is a simple Mordekaiser fight where I can get to use my W normally, in terms of visual.

https://www.youtube.com/watch?v=Il5e0IrivPg&feature=youtu.be

This video is another good example. All clear & visual, right?

But as the game prolonged til around 20 minutes, I began to noticed that my W is just too unnoticeable. Here are the screenshots (Imgur took too long to upload, so I had to use PostImage):

Normal: https://postimg.cc/image/y1iyvdcbh/

With W on: https://postimg.cc/image/vk77o6kq5/

I tried to use Replay to review the invisible W, but it turned back to normal for some reason. All I can say is that the bug only happens during the Live game itself. I'm really surprised that this one bug was not even bothered a single bit to be fixed at all, especially when it's one of the most crucial one.

How to get the bug:

1. Pick Mordekaiser.
2. Play out the game til 20-30 minute mark.
3. Use W.
4. Invisible W was seen instead of a normal W.