I am traveling through Australia right now with my 3000 downloaded songs and my downloaded songs are not available anymore. I got logged off randomly and when I log back in I don't have any songs more available off line. I don't have wifi available for couple of weeks so a fix where I don't need to re-download everything would be great. Checked my storage, and it says that the spotify app is 20gb, so the songs are on the device but according to spotify, they are not.

Some info:
-App is up to date.
-Tried logging out and back in, didn't work.
-I have a oneplus 3t with the latest version of Nougat.
-Gave the app permission to storage
-The device is not in sleep or night mode.
-There is enough free space to sync the songs
-I use 2 devices for off line usage
-I have Spotify premium

Hopefully I can get my songs back so I can listen to them on the road, which I do a lot . Happened 3 times in 2017, hopefully this will get fixed in an update. Again, I don't have wifi available, only cellular data. So an off line fix is appreciated (or a fix that doesn't need a lot of data). Cheers