Annie Stun glitch

During a normal draft, a glitch occurred where (playing ) my stun animation wouldn't go off. When her stun did come up after four spells the animation would over lap itself so the circle lines thickened. I was using her Sweetheart skin and looking at the forms it seems no one else ran into this glitch and so it might of been a one time occurrence. I'm just going to leave this report because my teammates were confused my I didn't engage or follow up with my stun/Tibber combo when they thought it was up and incase someone else runs into this issue.