Kha'zix bug
Played as Kha'zix today using Dark Star skin. I ranked up my R at lvl 11 and died as I chose which ability to evolve. This led to me being not able to evolve any ability until I hit 16. Another thing, which I'm not sure if it's just visual or not, but when I would walk into any bush while my ult was on cooldown, it would do the animation where Kha goes invisible. Again, I'm not 100% sure if it was visual bug or if the enemy couldn't see me either as well when that occurred. I did get the slight speed boost that happens when you activate his R when walking through the bushes. It didn't occur every time I went into a bush, I would say 75% of the time.