BBC radio3 podcasts

Hi,
I've used my uniti to listen to BBC radio3 podcasts for years but, since march 2015, when I play a podcast I just get a message like: "bbc has changed the audio format and my device is not compatible". My first thought was to wait for a new firmware.
Recently, in another thread of this forum, I've read: The new BBC iRadio format, HLS, is up and running for its radio stations, and for 'on demand'. Podcasts are still in MP3,

So if the podcast are in MP3, why I cannot listen it with my naim uniti ?

Thanks in advance

MB