After the recent patch occurred today, I seem to have lost access to all champions (and their accompanying skins). My PBE account's name is RedWhirlWind.
I still have all my runes and masteries and their pages, but I lost access to the champions bundle champions and nearly all the other champions in the store.
I'm not sure if there is a purpose for this or if it is just a minor glitch I suppose that will come with time. I have tried logging in and out several times to no avail. There is no backlog that shows any error occurred upon my original log in (on my side at least).
If you need any sort of proof, here are some images: