Kayle Skin Bug

So I did an aram ended up with Kayle, fun stuff. I looked at the skins and I had a skin that I never had before this past update. It's the Judgement Kayle, awarded during Season 1 I played League forever ago, but would recall playing enough to get a skin from played games. I don't know if it's a bug or I just never noticed it. Either way, bringing it to light on the boards and if possible have a Rito take a look at my account; correct the mistake and figure out why it's there.