Q: Why can't I download my songs from iCloud, I uploaded them before and now they are colored gray?

I uploaded mixes I used to make through Itunes Match. Now in my new computer I can't download them and they are colored gray, but the iCloud status says that they are in the cloud but I'm still not being able to download them.

I'm seriously ****** off and thinking about canceling my iTunes Match subscription because those songs are unique and I would never be able to download or listen. Unless there's a way. Please HELP!