Fizz jump bug

I don't know if someone have experienced this, but the second jump of Fizz E has a bug where you cross a wall but after that it takes you back immediately by dragging you ignoring that wall collision you just crossed. There is a very small wall that you can always cross with fizz jump, its right in front of the 2nd tower in mid lane, the one that gives you a shield... well, i crossed that small wall and took me back immediately after i crossed with the 2nd jump, now, why did i use the 2nd jump? because sejuani was chasing me and she was very very close so i had my jump up and i pressed E to get close to the wall, i went to the perfect position right next to the wall and then reactivate E across it to use my 2nd jump to cross, i did it... then my body moved! it didn't even walked.. it moved back to the position, like dragged right back where my 1st jump landed, ignoring this time that wall collision and sejuani killed me, she didn't cross the wall, and she didn't kill me till after the bug.