Offline won't download

[Nickstrickkkk]

I have all the storage requirements to download offline , and have only tried to download 3 albums ( about 35 songs ) but the download arrow stays grey no matter what I have tried . I tried to make a new list with the same songs but still now offline download .

[ccaarrllooss4]

If you have and iPhone 5S this problem seems to be regular, I had it myself. what I did was to delete the app and redownload it, after I synced it with my desktop app, and problem solved.

[Phoebee]

how do you sync with your desktop app? what does this mean