Skillshot bugs.

So, this has been happening for about a week. Whenever I aim my skillshot and then fire it, it will go in a different direction than where I aimed. I have talked to many people recently asking them about this and most said they have experienced this glitch. Its not on a specific champion either, Its on every single champion I have played. It only happens at most 3 times a game, but its still annoying because what if you are chasing down an enemy and then your skillshot fires the wrong way? It's just really inconvenient that its there. I don't have proof of it happening to me however if you watch Nightblue3's newest Zac video, you can see the glitch. https://www.youtube.com/watch?v=ewvTVL_WG5Y

This glitch happens at 3:45 into the video.