Issue With Downloaded Playlists

[jamesdull1299]

I have been having a recent issue with one of my downloaded playlists. I call the playlist "Car" and download it so I may listen offline while I'm driving. It usually works offline on my morning drive, but recently, when I open the app for my drive home, the playlist is suddenly "grayed out" and I can't listen to the playlist offline anymore. The only fix is when I get home I go back online and redownload the playlist again. Why does this keep happening? It's only a recent issue. Please help.