using groove api, songs play only in preview mode

i have a groove app (windows 10 uwp) based on groove api and having trouble streaming complete songs. here are the specifics:

1) if the track belongs to a playlist, it plays in preview mode; that is, only 30 seconds. this is so since the Rights returned only contains "Purchase". question is why since i have been authenticated as a subscription user.

specifics are: track id = music.AQQf3438A0IcWE616UjMC8qCiggWJewAAQ StreamUrl = http://progdownload.zune.net/135/669/228/170/audio.mp3?rid=Lu2zvQxJXkuwMovtp3FkEw.2.3

2) now, i play the same track directly from its album. this time, track Rights contain both "Purchase" and "Stream" but the Media Player fails with the following error: The Media format is recognized but not supported. (Exception from HRESULT: 0xC00D3E98)

track id = music.AQQfXcdiaU0GvECaTX1afASrswgWJewAAQ StreamUrl = https://webstream-vh.akamaihd.net/i/135/669/228/155/audio.mp4/master.m3u8?rid=yOHXmjvWYk+YqEzNzPBFpQ.2.4&hdnea=exp=1482004972~acl=/i/135/669/228/155/audio.mp4*~hmac=8861e3d6360cda76cb0d146b6769842a0ec0eb821450b5f2203627a8c3fcc9ee

of course, Groove Music itself has no trouble playing the track. has anyone successfully streamed a track? thanks for any insight on this...

We're investigating your issue right now.

For 1) in our logs we see that you only call us with the preview API on this track ID - have you tried using the stream API?

For 2) What media player control are you using? The HLS format (M3U8 files) should work seamlessly if you use windows.ui.xaml.controls.mediaplayerelement (https://msdn.microsoft.com/library/windows/apps/windows.ui.xaml.controls.mediaplayerelement).