I've created a playlist and downloaded it for offline playback on my Android device.
I've now added additional songs to the playlist.
How can I 'refresh' the offline version to include these additional songs? Clicking Download again doesn't do anything, presumably as the Android app has somehow marked the playlist as already downloaded.
please note that in order to update a playlist you can follow these solutions:
Delete your previously downloaded playlist, go into your online music and restart the download: playlists won't update automatically if a single track is added to them.
You may also want to download just the new songs and, once they are available offline, add them to the playlist. To do this: access your offline playlist, tap the three dots menu and then "Add songs". Select the songs you need. Note that any song already inserted in that playlist will be ticked.