Master Yi Alpha Strike (Q) Bug.

Before I start the video above is a bunch of examples of this. From my view some of them were fair, but others DID look like a bugged Alpha Strike (Q). Now, let's begin my bug report. Over my time of playing the assassin Master Yi i've encountered times where I would use my Q ability (Alpha Strike), but it would do 1 of 2 things: Mess up, or not work as it's supposed to. (Mess up = Me mistime it.) (Not work as supposed to = Read the ability, and ponder on it. Sometimes it won't work as it states. Now, overall I could be blind as a bat and i just mistime it every time this happens to me, but I believe something IS wrong with it. Please look at the video, and if you would like lookup other things similar to it.