My Samsung music app has been deleting any music newer than what was already on it for approximately two years. It started with my S9 and has continued onto my Note20 Ultra 5G. I download new music. It sticks around for 3-4 days, then it's wiped off the phone. I removed all music files from the phone. Then I uninstalled and reinstalled the app. I put 5 songs back on . They had been on the phone over two years ago. Then I downloaded a new song. It was gone after 4 days. The older songs are still there. I'm fed up. HELP!!!!!
