# Conversion failed. The transcoder failed to start up

**URL:** <https://forums.plex.tv/t/conversion-failed-the-transcoder-failed-to-start-up/934705>\
**Category:** Plex Media Server\
**Tags:** server-synology, plex-web\
**Created:** [December 21, 2025, 2:04am UTC](https://forums.plex.tv/t/conversion-failed-the-transcoder-failed-to-start-up/934705 "2025-12-21T02:04:16Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![FordGuy61](https://avatars.discourse-cdn.com/v4/letter/f/22d042/32.png) [@FordGuy61](https://forums.plex.tv/u/FordGuy61)\
**Post date:** [December 21, 2025, 4:00am UTC](https://forums.plex.tv/t/conversion-failed-the-transcoder-failed-to-start-up/934705/5 "2025-12-21T04:00:11Z")

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As @roobieroo mentions, configure the client to not play any trailers before movies.

Plex Web: Settings → Player → Cinema Trailers to Play Before Movies = None.

It is a problem with Plex Media Server. There are reports of this for both the public and beta releases. Plex is aware of the problem.

> [@Transcoding bug latest version update](https://forums.plex.tv/t/transcoding-bug-latest-version-update/934697/2):
>
> This is an issue with the Trailers trying to play. Disable trailers playing before the movie. We already have an internal issue tracking this problem.

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_[View the full topic](https://forums.plex.tv/t/conversion-failed-the-transcoder-failed-to-start-up/934705)._