Build and battle still giving out Surging Sparks packs

I've both received and played against people with surging sparks decks instead of chaos rising. I've also received chaos rising packs, so it doesn't seem to be a consistent problem.

When entering with a surging sparks pack, you get kicked out after the first game and don't get your entry token back. Which is quite annoying since you have no control over whether you're given one.