Spotify Connect and Podcasts - only some devices?

[Babymech]

So what's the deal with Spotify connect and podcasting? Is something **bleep** required to stream podcasts via Spotify connect? I ask because I can stream podcasts and music via Spotify connect to my audio pro addon c5 with no difficulty, but I can only stream music to my naim Mu-So, but not podcasts. When I try to stream a podcast to my Mu-So, I get the message - 'Sorry, can't stream this whole connected to another device!' this occurs both when using the Android app and the desktop app for Windows, so I suspect the problem is that podcasts on Spotify connect requires some additional protocol that my Mu-So doesn't have... Any explanation? Thanks!