No access to Apple Music via app
I cannot access Apple Music through the app on my desktop. The page continually asks me to "Sign in", when I have already done so. Both the mail address, and password are correct. I even had a Tech, from Apple on the phone. The app was uninstalled, then reinstalled a few times, reset and repaired a few times. I was even asked to repeatedly put in the wrong password, so I got locked out for 24 Hrs, and the app would reset. Except it didn't. I still have the same issue.
I can access my music via the web browser, but not through the app. The Tech said that others have had the same problem. Is there any sign of a fix?
Windows, Windows 11 (26200)