Missing games from popular

I was looking around and I didn't see my New Vance City game in popular, so I refreshed it a couple times and it popped up, but the Marvel game disappeared. I think when scrolling loads the next set of games it skips one or two, but I haven't tested enough to be certain and I don't know which games have X amounts of hearts to tell. Just wanted to let you know, it's probably just on phone mode.