Is there a way to make groove music manually search for new content on your device? I added some music last week, and it still hasn't updated to show it in the library. I can play it using the file manager, but only one song at a time.
Microsoft started a thread regarding this very issue on their support forums because so many people were complaining.
Voice your opinion:
http://answers.microsoft.com/en-us/musicandvideo/forum/xboxmusic/we-heard-your-feedback-about-groove-not-finding/35a10bbc-bd28-4738-bb07-bc216afef57d