[Gameplay] Legit fiora bug

I was able to get fiora stuck in the dash animation for a whole minute. during this stuck I was able to move at what looked like half speed wile floating I could not cast any spells and it stopped after attacking enemy nexus. I'm sorry I do not have any details on how to recreate it since it happened during a team fight. luckily it happened right when we won the fight so I was able to stay in it. as many details as i can recall would be : it was this game http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/1916551705/213765431?tab=overview it was last 5 minutes of game it was in enemy base a slight northeast of destroyed middle inhib i was surrounded by minions 2 allies and 1 enemy where close by. when i q to try to get onto the 1 enemy i feel that the hit did not go off even tho i feel i was in range and i was surrounded by minions. default skin and items did not change after the bug happened.

I'm sorry for wall of text. this is my first post and i feel i have no idea how to recreate it. Thanks.