Major Zed Bug
I see Riot is currently working on fixing a Zed bug. Please PLEASE fix the correct one. And it is repeatable EVERY SINGLE time. I know a lot of people, including myself, who have stopped using Zed because of it.
When you do his W+Q, then take a step backwards, the Q from his shadow disappears. I've also noticed that it sometimes happens when you side step after doing W+Q.
This is not because of pressing Q too quickly after W. If you press W+Q while Zed is standing still, both Qs will come out. But if you do W+Q then immediately take a step backwards, the Q coming out of the shadow disappears.
Here is a link to a video demonstrating what I'm talking about: