so for stream I was using auto and according to my service it was picking hls
I changed it to ts(mpegts)
did a scheduled recording to internal drive and it recorded the whole movie which was just over 2½ hours
so I tried twice using scheduled recording
one was 2½ hours and only 55 minutes recorded
other was 2¼ hours and only 51 minutes recorded
definately a bug in software
5.0.893