You can't see her level or items change. She shows up as something different on the minimap without a disguise on. And when you try to ping her missing items, you crash. Up until today I couldn't even see her W damage when I hovered over it, and showed up as @champion_name@ when I wanted to check my bounty hunt runes (last red ones)
2 of my friends also crashed, so this isn't on my end.