I was on my way home last night on the underground and pulled out my phone to listen to some of my pre downloaded music and found I couldn’t play or see any of the tracks. The moment I was above ground again and had an internet connection I could play them but seems a bit strange as the whole point of downloading is for when you don’t have internet.
Just to confirm these are files I own and I only needed the initial connection and then everything worked great. I did a screen capture just to record what I was seeing to illustrate the issue better so will link the video below.