It doesn't recognize my new media files

[sq1sz]

You can also try zipping the log file and attaching it to a forum post.  It should be small enough after zipping it.

  

is this what you ask of me?

I see a couple things.  First this.

Code:

[2024-05-15 07:27:40.798 +02:00] [ERR] [30] Emby.Server.Implementations.Library.LibraryManager: Cannot get image dimensions for "D:\PELICULAS 4K\Interstellar (2014)(4K UHDrip 2160p)-poster.jpg"
System.IO.FileNotFoundException: File not found

But it looks like you fixed that at some point yesterday.  But then I see this.

Code:

[2024-05-15 16:25:43.731 +02:00] [ERR] [59] MediaBrowser.Providers.Manager.ProviderManager: "TmdbEpisodeImageProvider" failed in GetImageInfos for type "Episode" at "F:\Series\Sky Rojo\S03\05-Sky Rojo - Temporada 3 [HDTV][Cap.305][Castellano][www.AtomoHD.LOL].avi"
System.Net.Http.HttpRequestException: La dirección solicitada no es válida en este contexto. (api.themoviedb.org:443)

Something about your setup is preventing Jellyfin from reaching TMDB to retrieve metadata.  Do you have a pihole or adblocker or something?

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Synology DS918+ with Docker installed version 10.9.0 can scan the media library and successfully add it, but most of them do not display the cover. In version 10.9.1, scanning the media library is slow, getting stuck at 50% for a long time. Refreshing the media library also only occasionally allows adding a movie.

What metadata source are you using?  I recall that TMDB is blocked in your country.

The issue has been resolved. The problem was with the built-in tmdb metadata source. Unable to download metadata using the built-in source, all built-in scraping plugins were disabled, and the system began automatically reading locally stored metadata. The information was refreshed immediately. It appears that version 10.9.1 and earlier versions do not actively prioritize locally cached metadata.