I get exactly the same error with some of my streams.
Having acquired the new Dreambox DM900 UHD, I am using Plex Server (22.214.171.12435) and IPTV.bundle to redistribute the channel streams (which come from dreambox with container: mpegts, video codec: mpeg2video and audio codec: mp2")
stream address sample: http://192.168.xxx.yyy:8001/1:0:1:201:5:22F4:EEEE0000:0:0:0:
Although they could play on OpenPHT and PlexMediaPlayer (directPlay) they did not on run at all on: Samsung TV (UE65HU7100), on Plex for Android, and Chrome Web.
After adding the parameters:
protocol="hls", audio_codec="mp2", video_codec="mpeg2video", container="mpegts" to the #EXTINF section of the stream, PMS started transcoding for Plex for Android and Chrome Web, but unfortunately no success with Samsung Plex App (2.008)
I tried to fiddle a bit with the Samsung.xml profile, hopping that at least transcoding would work, but unfortunately no results.
Suggestions or hints are welcome