Discord "Rich presence" icon bug

Whenever I see one of my friends, or myself, play the recently reworked champions (a.k.a Akali, Nunu and Aatrox) and the most recently added champion, Pyke, on Discord, it either appears as their old art or nothing at all. It's kinda annoying to see that they didn't update it. Just maybe nothing to most people but I kinda find it bothering.