[GAMEPLAY] LULU - Polymorph fails miserably!

Lulu's Polymorph is coded as a projectile for some strange reason meaning it can be blocked by Yasuo's Windwall but I won't be bothering with this right now. Because of that, it has a set projectile speed and sometimes bugs out when used against dashing targets. It will go towards the target's location before they dashed and then readjust its course, therefore missing out on a handful of important miliseconds and failing to do its job. Here you can see it being used on Amumu right before he Q'ed but Amumu still ends up using R afterwards while the game clearly reads POLYMORPHED and his status bar contains Polymorph's icon in it. Im just tired of losing ranked games to this and Ahri's E bug for the past few months!