SOLVED: YouTube Thumbnails Constantly Overridden

[Elarem]

Apologies if this is not the correct location to discuss plugin problems.

I'm currently implementing a library for YouTube videos I've downloaded via yt-dlp and am encountering this strange error with the Jellyfin YouTube Metadata Plugin.

Everything scans as expected, with the video thumbnail automatically getting pulled in per the library's fetcher settings, even using Screen Grabber as a fallback for thumbnails that can't be fetched as seen in the last video in the list.

   

However, after an undetermined period of time, the thumbnails always, consistently, reset to all be the thumbnail from the first video in the library based on alpha order.

   

Looking into the metadata settings of each video, the YouTube ID still correctly points to the video in the External IDs section, and all other metadata scrapped from YouTube (the release year, the creator, the video description, etc.) all seem to be preserved as expected.

   

Rescanning the library and replacing all existing metadata restores the correct thumbnails, but only for a brief period before it resets again.

Has anyone else encountered/solved this? I've been scratching my head at this for a while and appreciate any help!

[TheDreadPirate]

Do you have NFOs in your media directories? Or an external app that places images with your videos?

[Elarem]

Do you have NFOs in your media directories?  Or an external app that places images with your videos?

Not 100% sure if I know what you mean by NFOs in the media directories, but in the library's settings, the Nfo checkbox in the Metadata Savers section is selected.

I don't have an external app that places images with the videos.

[TheDreadPirate]

NFOs are XML files with metadata for Jellyfin to use. They can include paths to images.

But if Jellyfin is generating the NFOs (NFO/metadata saver), then I'm not sure. What do you have checked for image fetchers? And do you also have checked saving of images with your media?

[Elarem]

NFOs are XML files with metadata for Jellyfin to use.  They can include paths to images.

But if Jellyfin is generating the NFOs (NFO/metadata saver), then I'm not sure.  What do you have checked for image fetchers?  And do you also have checked saving of images with your media?

These are my current Image Fetcher settings. It's only using YouTube Metadata and Screen Grabber currently. I also have the "Save artwork into Media Folders" check box selected. Please let me know if there are additional details I can provide!

   

[TheDreadPirate]

For the file that is pulled into the media folder, open it up separate from Jellyfin. Is it the image that the thumbnail eventually changes to?

[Elarem]

For the file that is pulled into the media folder, open it up separate from Jellyfin.  Is it the image that the thumbnail eventually changes to?

This is what the media folder looks like currently.

   

I only provided the base .mp4 files, everything else was generated as part of my library settings. It looks like .webp files have correctly generated for all of the videos, and I can confirm that each of them are correct individually

[Elarem]

For the file that is pulled into the media folder, open it up separate from Jellyfin.  Is it the image that the thumbnail eventually changes to?

This is what the media folder looks like currently.



I only provided the base .mp4 files, everything else was generated as part of my library settings. It looks like .webp files have correctly generated for all of the videos, and I can confirm that each of them are correct individually

I wanted to provide an update for posterity here as I've found a workaround/solution. This issue is related to Issue #117 from the plugin repo, and the posted solution from one of the contributors was to use a pre-release build directly installed to the server. Both the official release and this pre-release build have the same version number, so I'm not 100% sure what it includes/entails, but doing this worked for me and now the library is behaving as expected. Hopefully whatever is in this pre-release will get merged into an official release soon!