Hello, I have songs that show they are "Waiting" for download from the cloud but they are greyed out. Some songs in one album are done others in the same album will not download. It is not a time function because i have been working on this for weeks.

Hello, I have songs that show they are "Waiting" for download from the cloud but they are greyed out. Some songs in one album are done others in the same album will not download. It is not a time function because i have been working on this for weeks. I have allowed my compter to run for days and the songs are still not accessible. I have a Match subscription and Match is working. If I click on the "Genre" link the greyed out songs show that they are ready for download from the cloud but I cannot download them. I have downloaded over 1500 other songs, so I am trying to understand what is going on here. I would appreciate any help anyone can give me.

Thanks