Azir E bug [GAMEPLAY]

Alright so since day one, I've been playing Azir with more or less of a passion, and since day one I've noticed tons of bugs, but the one that stuck out the most was his E bug and I'm not sure if it's just me or if other people are getting the same results. Here's how it goes in the most common cases: I lay out a couple of soldiers with my W and then cast my Q to close any gaps in between my soldiers and the champ to get more poke damage in. If I feel the need to go in and secure a kill or even if I want to experiment with a play I'd press E to fly in and then ult them back into more soldiers and ignite for the kill. Here's where the problem is in that. More than half the time, his E doesn't even work. I can honestly say that more than 70% of the time that I try to cast my E it does not activate at all and I simply just don't go in which has made me miss a lot of kills and possible ganks. I even went into a recent bot game to test him out to see if he really was that buggy or if I was just tripping balls about him and turns out YES his E is extremely buggy for me at least. I could literally be right beside my soldiers and press E 10 or 20 times before it even activates and I wish I had a video to post with it but sadly I don't. I hope I'm the only one who gets this bug and it's not that big a deal or anything but if it is this is one bug that needs to be fixed soon.