Yeah, that's it.
Its frustrating to grind a lot for a spin then find that there isn't any matching rare in all 3 spins.
I don't know if its an intended behavior or not, but it happened to me on my last 5 special spins, and its really annoying.
And no, im not screwing up spins, because I've been counting what rares show up and there were no way to make them match.
