Got stuck right next to the wall

I had played couple games on new summors rift... I found out when I use and ...I would stuck right next to wall by any skill shot...

#1Somehow I used E-Q combo with then got hit by SKILL Q...(no auto passive)...I would stuck in 2 second and I cant move.

I am pretty sure i didnt get hit by his passive.

#2I got the same problem with too

#3 I was playing on purple side of the map with ..i flashed over from bottom to top at our red buff area..I would get stuck in 2 seconds

I feel sorry that i could get any image of those bugs..