Lissandra Bugs

I bought Lissandra today, and I had already had a Program Lissandra skin shard in hextech crafting. I bought her, then I played a game as her with the normal skin, and then unlocked Program Lissandra. I played her again, this time switching over (direction: left, idk if it matters) to the skin. I proceeded to play another game. After that, the next time I played her (I don't remember exactly the amount of games, but I think it was 2 games with the skin before noticing), I wanted to skip up the original skin, as I enjoy rotating skins, even through the classic. However, oddly enough, the classic skin was locked for some reason, saying that I can't purchase that skin in the champ select (I tried going both ways to get to the skin, it didn't work.) Note that I COULD buy Bloodstone Lissandra and the other one too, just not the classic one.. even though I already bought her. I tried leaving it on the "locked" classic skin before the game started, but it still made me use Program Lissandra. I literally can't switch from my Lissandra skin to my classic Lissandra. I hope this gets fixed, I like the classic skin too. I've played multiple games, I still can't do it. It's not a one time thing in champ select.

I hope I've been detailed enough. I probabl went into too much detail for a small bug, but whatever. Hope this gets fixed. Last time I reported a bug, Riot already knew about. GL