Was watching a movie no problem. Went to enable subtitles. Next playback attempt resulted in “Playback Error: Conversion Failed. A required codec could not be found or failed to install.” After pretty much each of the following hacks, I right-click exited the Plex systray icon and re-launched: …

Back up and running with the manual copying of the codecs. Once that’s been done do I need to worry about Plex downloading new codecs? I suppose I could test it by renaming the codecs folder and seeing if PMS does the codex download?

[image] z_kenny_yahoo.com: still no luck. I’m on an M4 (ARM) I’m also on an M4. Worked fine for me. Make sure they’re in the correct location and have the correct names. But they say the issue should’ve been resolved now, so maybe just clear out the folder and see if it works out of the box …

@addykitty @RemohGramps Again this should be resolved. If you are still observing issues please share your PMS logs.

Still having issues with this issue. I am able to stream from LAN to LAN (PMS to iPhone) but if I am connected to 5G network I get this error with certain media. I’ve tried renaming codec’s folder, I’ve tried reinstalling an older version of PMS. Nothing is working. Yes, PMS is available outside the…

[image] Maximus1989: Has this issue officially been resolved by Plex yet? Yes. You’ll need to provide your PMS logs for anyone to provide assistance. At this point your issue is likely to be something else.

As far as I can tell, I’m seeing the same issue. Running Version: Version 1.41.4.9463 on TrueNAS Scale It seems to be related to audio codecs specifically TRUEHD 7.1 audio, but I’m not confident on that. Plex Media Server Logs_2025-03-07_08-07-05.zip (3.8 MB)

Based on the logs you’ve provided, your issue is something separate from this threads reported problem. Here is where the issue is: Mar 07, 2025 08:01:47.145 [140353957702456] DEBUG - [HttpClient/HCl#1680] HTTP/2.0 (0.1s) 200 response from GET https://downloads.plex.tv/codecs/8f4ca5ead7783c54a4930…

Ahh amazing, thank you for the investigation (experienced eyes on logs make it so much easier!) and reply. I installed the app through the TrueNas Scale UI, do you have any pointers (or a general direction on a guide) on how to set permissions for this install type? Happy to dig into it myself if y…

I’m also getting the error message “Conversion failed. A required codec could not be found or failed to install” I’m also running Plex on TrueNAS scale. I just want to confirm, it’s a permission issue, not a codec issue? Thanks

@JeyNyce1 without logs :person_shrugging:. If you find similar log entries as I called out above, then you can assume it’s a similar issue and likely a permissions issue. [image] Atomatth: Here is where the issue is: Mar 07, 2025 08:01:47.145 [140353957702456] DEBUG - [HttpClient/HCl#1680] HTT…

A required codec could not be found or failed to install

Plex Media Server

Atomatth Split this topic April 1, 2025, 4:38pm 89

3 posts were merged into an existing topic: Playback Error

Conversion failed

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A required codec could not be found or failed to install

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