Ok then I think you misunderstood me, or I am explaining poorly.
This is not happening currently.
/usr/lib/plexmediaserver/Plex Transcode is writing some operations into /tmp.
plex ... /usr/lib/plexmediaserver/Plex Transcoder -codec:1 ac3 -analyzeduration 20000000 -probesize 20000000 -i /srv/media/series/someshow/Season.02/someshow.mkv -filter_complex [0:1] aresample=async=1:ocl='5.1':osr=48000[0] -map [0] -metadata:s:0 language=eng -codec:0 pcm_s16le -b:0 768k -f wav -map_metadata -1 -map_chapters -1 -t 648.68949999999995 /tmp/dfcc847b-ce49-4d9d-8edb-598a7e3c306a -y -nostats -loglevel quiet -loglevel_plex error -progressurl http://127.0.0.1:32400/video/:/transcode/session/id/id/progress
Thats a transcode operation writing into /tmp/dfcc847b-ce49-4d9d-8edb-598a7e3c306a
This is the part I am talking about.
The Transcoder is sometimes not using TranscoderTempDir but TMPDIR.
