Rare Draven Bug
There's currently a bug where Draven's first axe of two will completely stop obeying him and fly to some random area of the map, such as 50 feet in the opposite direction of him or simply just disappearing after one use and not even doing the bonus damage for the hit. In addition, if you had 2 axes at the time of the bug start, the second axe will completely fizzle when used [no bonus damage/no axe bounce].
To be honest, this bug is pretty rare (I saw a similar post about this a long time ago), but I've had it happen to me twice in just the last week so I'm kind of wondering if any of the recent changes to the way that missiles act might have increased the probability of the bug. That, or does Draven have spaghetti coding on his axes(could use an update*)? I really have no idea.
If you're wondering if it was lag, nope. It was definitely not lag or me just doing something incorrect. I've played as Draven long enough to realize when something is off O_O.