Is there a restriction on music using the Xbox One client

My PLEX server is a mac, and my Plex - Music library is simply sharing the iTunes library folder on that mac, so it has music AND podcasts in it. All the other plex clients I have, on blurray, iOS, Mac and Windows 10 see the full music library and all the artists and podcasts, but the Xbox One client ONLY sees the podcasts as artists, no music artists, or music content show up at all in the list. The podcasts all play fine, and Shows and Movies also play fine.
Also it is not showing my other libraries - home movies and music videos.
Is this an intentional restriction?