WTH Amazon?

Any of my regular readers know that I've had problems with the way Amazon does business, and in fact, a lot of authors have had problems with the way Amazon does business, but this new one really has me stumped.  Like most authors do, I was searching my titles on Amazon to look for reviews and such, when I found some of my titles listed with the word "Greenlight" in them.  None of these listings showed a cover, and when I clicked on them, they were listed as out of stock.  For some reason, these Greenlight out of stock titles are listed before the actual titles, so unless you scroll down, or even click to go to page two, you'll think that the books are no longer available.
I have no clue what they're doing, but I suppose it's just more of the games they like to play with authors...