[GAMEPLAY] Bug with particle and flash

I was playing an ARAM with Kayle and then something weird happened. Annie took my e's particle with her while flashing. You guys are saying that this is impossible so i think this is a bug. Use the link below to see it. I've also made a slow motion in the end so u can watch it properly. Please Let me know what is gonna happen with that if it's a bug. I've heard that people who find bugs are getting some RPs. Even if it would be a small amount that'd be awesome. ♥

https://www.youtube.com/watch?v=FzlOG2CebvQ

Cya on the Fields of Justice. :)