Kills in Zyra's passive giving permanent buff visual effects.

This has happened to me in multiple games now in the 4.20 patch, have not tested it in 4.21 yet but saw no fix for it in the patch notes. When I kill someone who has a buff while in Zyra's passive I get the buff when I respawn but it looks like there are 2 of the buff visuals circling at my feet. When the buff runs out or I die, one of the visuals remain but i don't have the buff. And this stacks. There was a game where i had a permanent 3 blue buffs and 2 red buffs on me at all times. And it wasn't just a client side issue. The enemy team started asking about it and my friends who I was on skype with also where able to see it. It's just a small bug but something that I thought should be brought up.