Apple Music not adding songs to library
Recently, when I go to add music (have an Apple Music subscription) to any of the three devices below it will show the music as added, only for that music not to be actually added.
Search Apple Music- Add to Library- Added. Switch search to Your Library and then moments later, that music and the cloud download icon vanish.
Up until recently, without making any obvious changes outside of normal OS update, Apple Music/Icloud Library has worked beautifully.
I have rebooted all three devices, updated all three to the latest OS (MBP had not received last week's security update). Turned iCloud off and on with MBP.
Meanwhile, if I rate a song on my iPhone or iPad, I see that change almost instantly on my MBP.
Searched the forums without finding any similar threads- one possible solution in an old thread suggested a need to "ok" a new terms & conditions. I'm not seeing this anywhere.
Any idea how I can resolve this? Thanks in advance for your help.
iPhone 8+, 13.4.1
iPad Pro 12.9, 13.4
13" 2018 MacBook Pro, 10.15.4