I pre-ordered an album from itunes, and at first it only had one single from it and it was downloaded into my music app on my iPhone. After it was downloaded I noticed a button in my music app under the single that says "Show Complete Album". But since the latest update that button has disappeared and I no longer can "Show Complete Album" any more. I don't remember turning any settings off or anything like that. Could just be a bug? or is there a way to fix it. Because that button is not there, I couldn't download another single that was part of the album. Any solutions?