When I click to sort champions in the store by IP or RP nothing happens. The box doesn't get checked and the champions don't move around. I purchased Cass with RP and it didn't subtract the RP from the balance it shows at the top right. I played a game with her, then after the game the RP showed the correct balance, minus Cass' cost. The IP/RP sort still isn't working though.

EDIT: Now it is. Maybe just big lag? I've never see any lag like that in the store before. I waited a long time. I guess a few minutes of being afk fixed it.

Yes this happens on live too. If you want to 'sort by', all of the content must have loaded.

This is more of an inefficiency. I believe the shop still needs a bit more work on loading up the content faster.