Azir ult goes in the wrong direction

This is a bug that occurs very often whenever im using azir ult. I'm not very good at the game so i thought that it may have been my fault so i decided to record a game. I managed to find the glitch on the first try which shows how common it is. This is not an issue that i have on azir's other spells or any other champion, and the screenshot shows that my ping was good aswell. The glitch is very self explanatory but in short: my ult goes in a seemingly random direction.

I'm not sure how to reproduce this but it's very common.

Maby this is why azir has a 45% winrate...

Plz fix i love azir but this is just so tilting i can't play him.

https://cdn.discordapp.com/attachments/516028293800263712/519530723560914964/unknown.png https://cdn.discordapp.com/attachments/516028293800263712/519530748210970644/unknown.png