Bug - Latest server gives transcoding error, rollback to earlier works correctly

Follow up to my previous post. Latest server version introduces playback errors, rolling back to an earlier one resolves the issue.

Server Version#:1.43.0.10231
Player Version#:Plex for LG, Client version 5.93.2, Platform version 9.2.4

QNAP TS-251, QTS 5.2.7.3297, Celeron J1800, 8Gb RAM

Hardware acceleration is enabled and the device is shown as ‘Intel Atom Processor Z36XXX/Z37XXX Series graphics and display’

Error shown on client - ‘Playback error - an unexpected playback problem occurred’

Hi All

As previously posted, using the latest version of Plex server gives the above playback error, on some videos - not all.

I upgraded to the latest release version v.1.42.2.10156 which gave the error, and then I tried upgrading again to the latest beta 1.43.0.10231, however the error persists.

I uninstalled the server, and re-installed earlier version 1.40.5.8921 (because I still had that one in my downloads)

Using the latest server version, I get a playback error ‘an unexpected playback problem occurred’ on the client. If I go into the setting in the client (LG WebOS), and select Force Direct Play in the video options, the playback issue seems to be fixed, however I had not previously had to do this. Using the earlier server version, this no longer needs to be turned on and all videos play back without error, and I can see that HW transcoding is being used.

I think maybe it’s something to do with ffmpeg? If I watch the console output on the latest server version, these errors (amongst others) comes up -
[Req#1a2a/Transcode] [FFMPEG] - No support for codec hevc profile 2

[Req#1a2a/Transcode] [FFMPEG] - Failed setup for format vaapi: hwaccel initialisation returned error

[Req#1a2a/Transcode] Codecs: packet decode testing returned -95 for decoder ‘hevc’

There seems to be no issues with the earlier version - unfortunately I can’t determine which version introduces the error, as the only earlier version I have is 1.40.5.8921, so it’s sometime between then and the latest version.
Thanks

Bill

Version 1.43.0 includes the updated transcoding engine based on FFMPEG 6

From what I understand, there’s been a number of bug reports which Plex is still reviewing / fixing before this version publicly.

Thanks for that…I’ll just sit with an earlier version for now. I had the same issue with 1.42.2. I will see if I can locate a 1.41.xx version