I've noticed in the last couple of weeks two, and on all occasions only the same two playlists have become "undownloaded" onto my S2. I've downloaded the both 4 times now, and on the last three occasions it took only a couple of minutes to donwload around 20 tracks at extreme quality.
This suggests that the files are not wiped off the phone, but somehow not registered as downloaded - I notice that if you undownload a file it doesnt appear to erase it, merely mark the phone memory as "free" and available space to be written to.
I'm wondering if this is a spotify problem, since no other playlists exhibit this behaviour, in addition, I have deleted more than the equivalent number of tracks in case it was a memory issue on the phone, though according to task manager I'm using around 2/3 or all availabale phone / sd card memory.
This suggests that the files are not wiped off the phone, but somehow not registered as downloaded - I notice that if you undownload a file it doesnt appear to erase it, merely mark the phone memory as "free" and available space to be written to.
I'm wondering if this is a spotify problem, since no other playlists exhibit this behaviour, in addition, I have deleted more than the equivalent number of tracks in case it was a memory issue on the phone, though according to task manager I'm using around 2/3 or all availabale phone / sd card memory.