[Gameplay] Shurima Themed Wards

During the Shurima event I bought the sun disc ward skin and have used it since. Today however I've noticed that whenever I upgrade my trinket to the vision ward it appears on the map as the Amumu ward, which I don't own. Still gives vision and all, just the wrong skin.

It's only the upgraded trinkets that do this (haven't tested it on the upgraded stealth trinket yet). Sightstone wards, stealth and vision wards i buy from the store and the starting trinkets show up with the sun disc as normal.

Also, this occurred during normals on SR. ~~ I played a few co-op games as well, but don't remember if the glitch occurred there as well or not.~~ edit: also in co-op