Why aren't Rune Pages saving in Champ Select?

Whenever I try to save a page in champ select, it'll make the "SHINGGGG" noise and turn grey before stalling and then not doing anything. When I exit the rune-editing thing, it's like, "You wanna save your page?" And when I say yes, that doesn't do anything, either!

On the bright side, I learned that Ravenous Hunter isn't half bad on Anivia.