Jinx Ult Bug

I was playing ranked a couple of days ago and then my friend was spectating the game. I was playing Jinx during this match and I fired my ult down the mid lane to hit lee sin and I thought I missed, but it actually went through the champion. My friend then sent me a snapchat of the video and I asked him if he saved it but he didn't. Just want Riot to be aware that his little bug has happened to me twice now of my ult going through people when they are low health.