Game Thinks a Character is a Different One (6 Mages Bug)

So today, I played a match in which I went Ocean Mages.

I ended up with Vlad, Syndra, Taliyah, Veigar, Leblanc, and mage-cap'ed Nami as my mages, along with a Nautilus to get 6 Mages and 4 Ocean.

The problem is, the game didn't recognize that this was a 6-Mage composition. My Mages did not have a 100% chance to double-cast.

In the post-game lobby, I realized why: The game had bugged out and thought my Leblanc was a Lux (see screenshot, I'm 4th place). The problem is, I hadn't even rolled a Lux, let alone bought a Lux that game.

Please fix, Rito!