A bug with ARAM?

So I was playing ARAM and I got Evelynn I'm not that fond of Evelynn so I rerolled and I got Lucian, or at least that's what I thought I got, until in the loading screen it showed that I had gotten Hecarim. We had a Xayah too and a Wukong but in the loading screen there wasn't any Xayah or Wukong. I don't know what is causing this. Since that happened I chose fervor since that's what I choose on Lucian but then I got it on Hecarim which isn't the greatest on Hecarim. (P.S I don't have any pictures since i didn't think this was originally gonna happen.)