"Conversion failed. The transcoder failed to start up."

Server Version#: 1.24.2.4973

I’m getting a ‘Playback Error’ when trying to play any trailer from my server in the Plex app web, with this error message:

Conversion failed. The transcoder failed to start up.

I’m not using local trailer files, I just have Plex Pass with the shipped trailers feature, which was working fine days ago.

I wonder why Plex needs and tries to start the transcder to convert a trailer to other video format as the error message suggests.

In any case, how can I fix this?. Recently I was configuring all the settings of my server but I don’t remember to have configured anything that can cause this kind of error. Movie files can be played fine, but trailers will not play.

Note that nobody gave a solution to this same problem in this other thread…

Thanks in advance.

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This is what occurs when I try to click the trailer button of a movie:

I had never specified a custom directory path in the ‘Transcoder temporary directory’ option of the Transcoder settings, and it always worked fine. However if I try to specify a custom and existing directory path to see if this error goes, the same error is seen in the console.

In the custom directory path that I specified, Plex creates these subfolders: .\Plex\Transcode\Sessions that are empty.

I’m really frustrated with this…

An issue has been identified with the trailer ingestion on plex.tv.
Please wait 48 hours. Then Refresh Metadata of a few of the affected movies (i.e. the movie for which the trailer is).
If the trailers are then playable, Refresh Metadata of the whole library overnight.

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Thanks for support!. I’ll wait to see if this is solved in few days before marking the Solution checkbox.

Thanks. I’m having the same issue:

I’ll wait 48 hours.

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Good movie! lol

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Same issue here. I’ve been manually adding trailers to the shows and movies affected by this in the meantime using local assets. Not ideal but it works. Hope things are better in 48 hours. Thank you.

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I just upgraded my Synology PMS to Sonology DSM7 and then my PMS for DSM 7. I have tried what’s is listed on this thread and I get the same transcoded error only when trying to play Trailers only on Apple TV. Trailers play on my PC browser just fine but not on Apple TV 4th Gen on Standard or 4K…

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Yup mine just started failing too. Same situation as the rest. Was working a few days ago

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A possible solution:

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What worked for me is the solution that I marked in this thread, and only after refreshing the metadata as mentioned.

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