sometimes this happens when you go to someones profile then runebook. the combiner appears but u can edit runes as well
Sack of Woe
i've had the same problem
Now that I think about it, this has happened to me too.
I've experienced it as well
© 2014 Riot Games, Inc. All rights reserved. Riot Games, League of Legends and PvP.net are trademarks, services marks, or registered trademarks of Riot Games, Inc.