Syndra's Stun malfunction

Since the recent patches to Syndra's stun, I have noticed multiple issues with the stun. One of the first issues is the stun not actually stunning champions at all even at max range. Most people would argue that the stun was missed, however even at max range the champion was knocked back but not stunned with no other factors affecting the champion (merc treads, qss, etc). I have also noticed that at close range the stun also glitches and sometimes either double knocks back or the the ball does not move after the scatter the weak is used for stun. There was a glitch video that I saw where Syndra's balls would sometimes bounce back to her and not stun. This is a very frustrating issue and hope it gets addressed soon as this has cost me multiple games.