Wukongs Decoy ability is currently bugged

I was just playing against a Wukong as Riven, don't know if this is a specific interaction or not, but half the time he used his clone no invisibility was granted, I could just see exactly where he was going. We had no true vision at all, and this was under his tower, as well as anywhere on the map. This is actually gamebreaking for players who enjoy playing him top where you trade a lot.