VC1 Transcoding Broken [Again]

[ThePrower]

Server Version#: 1.42.2.10156
Player Version#: 4.157.0

Following up from a post I made in 2024. VC1 transcoding is broken again in the same fashion as below. It stalls without playing on some TV apps and the web player alike. That said, the actual app for Windows and Android does work appropriately. A bug fix was previously made that addressed the issue. I am unaware how long this has been occurring since the fix.

Recent update breaks VC1 transcoding

Server Version#: 1.41.0.8992 Player Version#: 4.138.0 It appears today’s update has broken VC1 transcoding. Direct play appears to work on mobile though begins to buffer endlessly when transcoding. Setting it down to 720p and below appears to begin playback though. Turning on subtitles makes it super pixelated. This is occurring regardless of the player. On Windows 11 with a 12700K. HW transcoding and tone mapping is working great otherwise with other files. Any thoughts on what is going on? …

I did attempt rollback to 1.42.1.10054 without difference.

Logs provided replicating the issue as below. I did remove the installer and plugin files due to size constraints.

Plex Media Server Logs_2026-01-04_19-56-05 (2).zip (2.8 MB)

Thank you to anyone who can help.

[ThePrower]

Update. It appears updating to the current 1.43 beta seems to have solved the issue? Take that as you will