HomePod will not play certain Apple Music stations

I haven't been able to figure this one out. My HomePod will, sporadically and randomly, hate a given station on Apple Music and refuse to play anything even close to that genre. For example : ask the HomePod to play the 70's Pop Channel on Apple Music, and most days Siri is more than happy to comply. Then, totally without any warning or indication, other days will deny that any music from that decade exists, i.e. "I can't find any music from that decade". Literally, any station from that decade is unplayable.

It is not strictly limited to that particular channel or genre, as the same thing will happen if you are talking 50's, 60's, 80's or 90's. I merely provided the 70's by way of example.

I have tried all the steps Apple lists in : If HomePod isn't responding. In addition to these steps I have tried resetting my network, my router, my wireless access points, et cetera. At the same time Siri is denying a decade in time, I can access the station being requested flawlessly on another Apple device, such as an iPad, iPhone, and so on.

If this is limited to just the HomePod, I can't figure out what can possibly be causing this oddly specific flaw.

Thank you in advance for any light that can be shed !