Sonos alarm - BBC sounds / My sounds / Subscribed - not expanding

BBC sounds is working fine on my Sonos. 

Before about a month ago, I could set my Sonos alarm to be a prog that I had subscribed to via BBC sounds / My sounds / Subscribed / select the subscribed set of shows / select the show. 

A month ago, the above stopped at the ‘Subscribed’ screen with no way to then ‘select the subscribed set of shows’.  This was on both my Samsung phone and the Windows PC app. 

Any idea why I cannot now select one of my subscribed programmes? 

Note this goes for all the options from the My Sounds page - the ‘subscribed’, ‘continue listening’ and ‘latest’.  None of them expand to show the selection of shows.  If I just go with selecting ‘subscribed’, the alam does not work and I get a standard Sonos chime in the morning.

Help!  Please!!

Many thanks.