Hextech Crafting Skin Bug

I bought some RP for hextech crafting and I opened a few boxes and ended up with a few skins that I didn't care for. I decided to reroll them and it said I got Beast Hunter Tryndamere, which I don't really like that skin nor champion. Later I decided to play it because I had it and then I realized that it wasn't unlocked, but instead a much better skin, Warring Kingdoms Tryndamere. It gave me a better skin and I'm not mad, I just putting that out there