It does appear that the Transcoder process was killed off - but not by Plex Media Server - so suspect it is the low memory issue which is currently being investigated with the nVidia Shield team.
Session started at 14:34 which started two transcoder job for the capture of the stream from the channel and for transcoding for the roku app
Nov 15, 2018 14:34:28.408 [13692] DEBUG - Request: [192.168.1.19:56688 (Subnet)] POST /livetv/dvrs/2/channels/2.3/tune (14 live) TLS GZIP Signed-in Token (ravennevar2018)
Nov 15, 2018 14:34:28.923 [13103] DEBUG - Jobs: Starting child process with pid 13734
Nov 15, 2018 14:34:38.001 [13723] DEBUG - Jobs: Starting child process with pid 13794
Got to segment 852 (1 second segments = 14 minutes 12 seconds) and that got to the roku app ok
Nov 15, 2018 14:48:49.911 [13791] DEBUG - Request: [192.168.1.19:56697 (Subnet)] GET /video/:/transcode/universal/session/ac985f8df798b1a7bf7241fde0cea954/base/00852.ts (13 live) TLS Signed-in Token (ravennevar2018)
Nov 15, 2018 14:48:49.912 [13791] DEBUG - Asked for segment 852 from session.
Nov 15, 2018 14:48:49.912 [13791] DEBUG - Returning segment 852 from session: "/storage/emulated/0/Android/data/com.plexapp.mediaserver.smb/cache/Transcode/Sessions/plex-transcode-ac985f8df798b1a7bf7241fde0cea954-103e25d4-ab19-4073-a5c7-22b5cdc9b131/media-00852.ts"
Nov 15, 2018 14:48:49.912 [13791] DEBUG - Content-Length of /storage/emulated/0/Android/data/com.plexapp.mediaserver.smb/cache/Transcode/Sessions/plex-transcode-ac985f8df798b1a7bf7241fde0cea954-103e25d4-ab19-4073-a5c7-22b5cdc9b131/media-00852.ts is 1069532.
Nov 15, 2018 14:48:49.957 [13009] DEBUG - Completed: [192.168.1.19:56697] 200 GET /video/:/transcode/universal/session/ac985f8df798b1a7bf7241fde0cea954/base/00852.ts (13 live) TLS 46ms 1069532 bytes (pipelined: 853)
Next that happened was the transcoder process getting shutdown
Nov 15, 2018 14:48:49.958 [13016] DEBUG - Jobs: '/data/user/0/com.plexapp.mediaserver.smb/Resources/Plex Transcoder' exit code for process 13794 is -9 (signal: Killed)
and this was not instigated by Plex Media Server
It has been flagged as a high priority issue to be investigated and we are working with the nVidia Shield team to provide sample media files and diagnostics
