HomePod cannot play BBC Radio 2

Why is HomePod suddenly unable (October 2020) o play BBC Radio 2?

I love to listen to The Jazz Show with Jamie Cullum every week and suddenly, even after installing the late iOS 14 update, Siri won’t play the station anymore. It used to stream it through TuneIn. Should I go through the whole rigmarole of ‘removing accessory’ and reinstalling? Or go back to using AirPlay and beaming it from my iPhone or just give up and start asking Alexa?