I run without my phone, using the Spotify app in offline mode with the Samsung Gear Sport. The app is nearly useless; although my 200-song playlist is downloaded, it only shows the first 20 or so songs. It often gets hung up where it stops playing altogether and I can't move forward or back through the list. I've deleted and reinstalled multiple times and it doesn't help. Has anyone else had this problem?
Yes the same issue is still ongoing. I have found that to make it work I need to
1 clear offline cache
2 redownload playlist,
3 start playing a track from playlist,
4 go offline,
5 disconnect wifi on watch
6 turn off bluetooth on phone
This works 100% off the time but is clearly time consuming and frustrating.
All I have got from Samsung and Spotify is that when the phone connects to the watch by bluetooth or wifi it does a 'maintenance' similar to phone cache clean software which then corrupts the offline music files. Basically they blame each other for it not working effectively.