HomePod Mini no longer plays music by artist name after recent software update.

After a software update in April, all three of my HomePod Minis will no longer play songs by an artist. I have iTunes Match, not Apple Music. Here are examples of the behavior.

"Play Abbey Road"

"Now Playing Abbey Road 2009 Stereo Remaster by the Beatles" ... first track begins to play

"Play Polythene Pam"

"Now Playing Polythene Pam by the Beatles" ... Polythene Pam begins to play

"Play The Beatles" or "Play songs by The Beatles" or "Play music by the Beatles"

"Looks like Apple Music can't play that."

This is true for every artist I've tried. Clearly, it has access to the music since it plays by album or track name. It will also play a playlist by name.

Software version 18.5 (22L572)