Siri not Finding Music

I have two HomePods. I subscribed to Apple Match to load my music library to the iCloud. Using Siri through the HomePods I could play any playlist, album, artist, or song over the course of a year. Suddenly, in the last two months Siri tells me it cannot find a requested playlist, album, artist, or song. Siri/HomePod can play a genre, however. "Siri, play some classical music" and classical music plays. So, the music is available.

I have reset the HomePods, disconnected them and reconnected them, fiddled with settings, and tried any suggestion found on various websites. Nothing has worked. I know other people have reported this problem on Apple message boards going back to November 2019. They have been told it is a bug and is being worked on. Is this still so? Is there a fix?

Thank you for your time in this matter.

--Mike