Evelynn stealth bug

I've noticed quite a few times in my own games and in spectator mode that Evelyn will become un-stealthed but to the player they still appear stealthed. I'm not sure how the opponent sees it. I'm not sure of the direct cause but I believe it has something to do with cinder hulks passive and/or creep damage. I'm pretty sure it is visual only but I wanted to make it known if it isn't already. Anyone else seen this or know more about it? It really should be fixed just for readability and cohesive visuals..