Changes made in macOS don't show in Cloud or iOS devices

I have Apple Music on my iMac, iPhone 12, iPad mini 6 and two Apple TVs. When I make changes to the iMac library (generally changes to the data - genre, album artist, etc. that you can't make on iOS devices - the changes aren't reflected on the iOS devices nor if I log into Apple Music through Safari. The ability to do this was working most of the time before Monterey. Then it would work for a day or two and then stop. Then work again and then stop again. Now it seems like it never works.

And if I click on "Update Music Library" on my iMac, the library on the iMac reverts to before I made the changes because that is what is apparently in the Cloud.

I have Sync turned on on all the devices and the iMac. Anything else I can try?