If I have a playlist which contains Internet stream pointers I can open it fine in the web system and see what the stream names are.

Over the CLI interface the command 'playlists tracks 0 10 playlist_id:2821 ?' where 2821 is a valid playlist id does not work.  The following is observed:

If the list contains only song pointers, it works fine.

If the list contains only stream pointers it rturns the correct count for the number of pointers but no data after the count. If the data is not available it should return a 0 count. 

If the list contains a mixture of song pointers and stream pointers then the system returns an incorrect count and some of the song pointers. in my case there were 10 songs pointed to and one stream, the stream being first. It returned a count of 8 with there being 7 data items of the 10 songs expected.

Here is a sample play list that contains only stream pointers that fails:

#CURTRACK 0
#EXTM3U
#EXTINF:-1,S K Y . F M - Classical & Flamenco Guitar - a mix of classical, spanish, and flamenco guitar
http://207.200.96.229:8016/
#EXTINF:-1,S K Y . F M - Simply Soundtracks - a wide variety of Soundtracks from Movies, show themes, & more!
http://208.122.59.30:7774/
#EXTINF:-1,Smoothjazztampabay.com "The Smooth Edge" Broadcasting LIVE From Sunny Tampa Bay Florida
http://74.50.100.222:8050/