Maybe this problem is common and there's already an answer to my question. However, I can't find the solution to my problem anywhere.
So I have samsung galaxy s3. I downloaded my playlist so i can listen to it offline. Everythings works fine but after a couple of month. Somehow my offline playlist cannot be played and I have to redownload everything from begining. Also, my offline file is still there when I check my spotify directory, and my spotify app size still around 1GB which clearly show that my downloaded songs are still there.
This already happen for 5-6 times in 2 years since i use spotify.
I tried to update the spotify and use old version spotify but still this problem will eventually happen and I have to redownload evwrything all over again