Wife was looking into it. Apparently Google settled a lawsuit, not sure
exactly about what, and removed some things and have had a few problems
crop up from it. This being one of the issues people have been facing.
Don't know how to help but we've been having the same issues for about a
week now. Only very general audio requests play, we can't even play our
own YouTube music playlists by asking for them, it just gives that same
standard reply.