Zed's shadows show their shuriken range long after disappearing.
Since the 4.18 patch Zed's shadows will keep showing the range their shurikens even after they disappear. For instance, if I throw my W shadow out and wait until it's gone and THEN throw my shuriken, I still get a range indicator from where my shadow disappeared from. I believe the same happens with his ult shadow. It's just really misleading because you constantly think you're going to throw a double shuriken even though your shadow's gone. I hope this was good enough as I can't really get a screen shot of it! Thanks!