Twisted Fate Bug

I have not been able to get footage of this bug but it happened a few times to me in recent games where i was against a lee sin. So lee will cast his Q on me and i will have my gold card ready to cast on him as soon as he dashes in, my play works and i stun him but then he somehow manages to hit me with another auto, even though i can clearly see the purple stun mark over his head, and in most cases this would kill me. I hope riot fixes this.