Several Major bugs still not fixed

Kalista can still AA while stunned thanks to Martial Pose.

Riven stun stops all dashes (the stun not the pop-up). She also gains an invincibility frame on her dash before the shield forms. Riven 3rd Q will still act as a frame to allow her to ignore (not even invinicibility, more like an ether) anything that would have hit her.

People can still just randomly walk out of Veigar stun with no effects.

Nidalee still has ghost spears that only show a slight orange blur and sometimes don't even show up if they don't enter vision fast enough.

Killing Vel'Koz during the cast time for his ult will put it on complete CD.

This doesn't even include how buggy hit boxes are especially on long range skill shots.

Note: all of these bugs have existed for 2+ patches and Riot and the community has yet to acknowledge them other than Nidalee's and the hit box bugs.