I don't have enough space on my device to download all the music I want to, so I keep trying to save it to my SD card which has over 100 GB free. Everytime I do so it will download and will be there for a few days and then randomly will undownload itself. I have tried deleting the cache and app and then redownloading, I've gone online and deleted all of my downloaded devices from the website but it still occurs. I have also tried to just save it to my device and it will stay on my device but as soon as I try to move it to the SD card to free up space on the device storage it will remove the downloads in a few days.