I have this issue off and on with all different file types when streaming to a Roku 2 running PMS on a Win XP machine. I'll start a movie, fast forward anywhere from 5-45 minutes into the movie and after I press play the load bar will hang around 1/3 for a couple minutes before giving me the error message "Video unavailable." I have tried the same movie files from a network drive, an ext drive plugged direct to my PC and the file on the hard disk in my PC with the same results. Some files will play for a couple minutes and then just quit and give me the same error without fast forwarding. It has been working fine forever with the same setup, this is a recent development. (Pretty sure none of the files I play are MKV either, I know that tends to be a troublesome format.)
Bumping this topic as I've been experiencing the same thing. I have confirmed that I have the most recent version of the Plex Media Server, and have also removed & re-added the Plex channel on my Roku to verify that I have the most recent version of it. Can one of the Plex developers please respond?
Also have this issue tried both Plex and PlexTest channels
*EDIT
Seems it's related to reference frames... quick search on the forums led me to the max of 8-9 and the videos with problems are 10+ so that's that for me
I see that you posted here that you had the same issue. I came here looking for a solution myself, but I noticed that you responded to post made in 2013. Have you found a solution? It seems to be (at least for me) a problem with the transcoder.
