Multiple playback/transcode issues - halted transcoding, optimized media, playback errors

Server Version#: 1.13.8.5395
Player Version#: Web Client 3.67.1

Since I’ve installed PMS on a new computer, I’ve run into a couple of problems mostly related to playback.

The most frequent issue I’ve been having is that often, Plex will seemingly transcode at around 0.1x. This usually happens for about 5 minutes shortly after starting to stream. Afterwards it transcodes quickly, as it should. There is seemly nothing happening when I look at the usage on the server. I haven’t seen anything in the logs that are relevant to this issue.

The second issue I’m having is that Plex is that I cannot watch optimized versions of my media. The optimized version is created just fine and quickly and the version works fine when not being streamed through Plex. However, when I try watching the version, Plex instead loads the original version and the second isn’t found by Plex anymore in my media but still exists.

The last issue I’ve been having since only recently. Often, a couple minutes into streaming, I’m given the error “There was an unexpected error during playback. Please visit our forums if you continue to experience problems.” The error continues immediately after trying to stream again until PMS is restarted.

I believe the issues are related.

This is from the logs when the last issue occurs:

Nov 30, 2018 15:31:52.652 [5900] DEBUG - [Now] Device is Firefox (Firefox).
Nov 30, 2018 15:31:52.652 [5900] DEBUG - [Now] Profile is Firefox
Nov 30, 2018 15:31:52.652 [5900] DEBUG - [Now] Updated play state for /library/metadata/973.
Nov 30, 2018 15:31:52.653 [5900] DEBUG - Statistics: (8chfswmscpj37rjpx6jhmp05) Reporting active playback in state 3 of type 4 (scrobble: 0) for account 1
Nov 30, 2018 15:31:52.653 [5900] DEBUG - Streaming Resource: Terminating session 0xa6a4730:pimm56wgo4rw5f7q6ntqqibo which is using 2926kbps of WAN bandwidth.  Used is now 0kbps
Nov 30, 2018 15:31:52.653 [5900] DEBUG - Streaming Resource: Terminating session 0xa6a4730:pimm56wgo4rw5f7q6ntqqibo which is using transcoder slot.  Used slots is now 0
Nov 30, 2018 15:31:52.653 [6556] DEBUG - Killing job.
Nov 30, 2018 15:31:52.653 [5900] DEBUG - Streaming Resource: Terminated session 0xa6a4730:pimm56wgo4rw5f7q6ntqqibo with reason Client stopped playback.
Nov 30, 2018 15:31:52.653 [5900] DEBUG - Streaming Resource: Removing session 0xa6a4730:pimm56wgo4rw5f7q6ntqqibo
Nov 30, 2018 15:31:52.655 [0536] DEBUG - Completed: [135.23.202.30:3454] 200 GET /:/timeline?ratingKey=973&key=%2Flibrary%2Fmetadata%2F973&playQueueItemID=1309&state=stopped&hasMDE=1&time=414000&duration=1513000 (12 live) TLS GZIP 69ms 840 bytes (pipelined: 32)
Nov 30, 2018 15:31:52.679 [6556] DEBUG - Job was already killed, not killing again.
Nov 30, 2018 15:31:52.679 [8412] DEBUG - Jobs: 'C:\Program Files (x86)\Plex\Plex Media Server\PlexTranscoder.exe' exit code for process 8324 is -1059143458 (intentional termination)
Nov 30, 2018 15:31:52.679 [6556] DEBUG - Stopping transcode session agvzvayiu3ew51iwjnaqkiod
Nov 30, 2018 15:31:52.684 [6556] DEBUG - Transcoder: Cleaning old transcode directories.
Nov 30, 2018 15:31:52.685 [6556] DEBUG - Transcoder: Cleaning old transcode directory: "C:\Users\Lenovo\AppData\Local\Plex Media Server\Cache\Transcode\Sessions\plex-transcode-agvzvayiu3ew51iwjnaqkiod-ab02257a-22ba-49ee-800c-0752a7777f2a"
Nov 30, 2018 15:31:52.687 [6556] ERROR - Transcoder: Failed to delete session directory (boost::filesystem::remove: The process cannot access the file because it is being used by another process: "C:\Users\Lenovo\AppData\Local\Plex Media Server\Cache\Transcode\Sessions\plex-transcode-agvzvayiu3ew51iwjnaqkiod-ab02257a-22ba-49ee-800c-0752a7777f2a\chunk-stream0-00143.m4s")
Nov 30, 2018 15:31:52.687 [6556] DEBUG - Whacked session agvzvayiu3ew51iwjnaqkiod, 0 remaining.
Nov 30, 2018 15:31:52.720 [0848] DEBUG - [TranscodeOutputStream] Timed out waiting for data
Nov 30, 2018 15:31:52.720 [0848] DEBUG - Removed transcode output stream 0xab09010, active count 1 => 0
Nov 30, 2018 15:31:52.811 [0536] ERROR - Session 0xa6a4730 terminated

I found a couple of similar issues to those I’ve been having. However none of them have solutions.

Help would be much appreciated, Thank you!

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