Plex Media Server no longer plays certain media codecs

Hi all,

FYI - I also posted in FreeNAS forums.

My Plex Media Server is on 11.3 FreeNAS. Server has been running fine for 12+ months. Both my nVidia Shield Plex Player and Desktop Web Plex player just stopped playing certain codecs yesterday (.mkv, .m4v, etc), but will still play .mp4 codec files. IOS Plex Player works fine for all codecs.

Last time this occurred in Spring 2020, the problem was my nVidia Shield Plex Player updated automatically, and I was forced to upgrade Plex Media Server to a newer version.

I suspect that’s what has happened again, so I went ahead and updated to FreeNAS 11.5. But the Plex Plugin Update option does not seem to be working. Several processes seem to fail. Any thoughts on where to trouble shoot next?

Log files attached.

Thank you

Plex Media Server Logs_2021-06-06_16-37-34.zip (719.4 KB)

Server Version#: 1.22.3.4392
Player Version#: Web 4.54.5
FreeNAS: version 11.3
Plex Pass: Yes
Server: CPU: Intel i7 CPU 950 @ 3.07GHz
Server RAM: 16GiB
Multiple HDD:
-several as individual VDEVS
-main library is on another NAS and mounted

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