Groove does not find a newly downloaded Album that IS located in my Music file

[WPCentral Question]

I successfully downloaded a new Album from Amazon.com The Album Does show up in Windows Media player and will come up in a generic computer search of either the Album title or artist. It is located in the same file with the rest of my collection. This new Album, however, does not show up in Groove and if I search for either the Album title or Artist name in the Groove app I get the message "Sorry we didn't find that in your collection". Any explanations?