Zyra E hitbox bug OR interaction with Yuumi

Have a look at the 3 screenshot below: 1 Zyra try to hit Garen with her E, you can see the path is going straight to Garen https://ibb.co/x3ZHsYs

2 You can see her E might touch Garen (but maybe out of range), but is clearly not is range to touch Ziggs https://ibb.co/myF4pQn

3 Zyra E actually root Ziggs, as well as Yuumi who is going out of Ziggs at that moment. For Zyra E to touch Ziggs, I colored what her E hitbox has to be. https://ibb.co/6yPC6wp

4 you can see Yuumi (on the right) and Ziggs (on the left) both rooter here https://ibb.co/1rPXxXW

We lost the ranked game on this bug.

Not sure if this is an interaction with Yuumi going out of someone, but as it also touches Ziggs I assume it may be Zyra E hitbox that is too large?