Can't authorize or deauthorize my apple music account
I tried to buy a song on Apple Music and it wouldn't download because my mac "hasn't been authorized". In Apple Music/Account/Authorizations/Authorize this computer I get a notice that I already have 5 computers authorized. But under Apple Music/Account Information/Computer Authorizations it says "one machine is authorized to play content with this account". There is no button to "Deauthorize all". Right now, I'm stuck. I can't download and I can't change any authorization status info.
Appreciate any help. --Dave
MacBook Pro (M3, 2023)