I download Let's Play series off of Youtube and sort them to watch through Jellyfin at a later time. I also download the thumbnails. On June 9 I upgraded the Jellyfin server from 10.9.1 to 10.9.6 and thumbnail importing broke somewhere inbetween those two versions.

As you can see, episode 25 which I downloaded on June 7 has its thumbnail while episode 26 which was downloaded June 12 does not. This happens for all videos I've added. I've double checked that the images are not corrupt and that the file names match.

[Edit]

I rolled back to 10.9.1, did a refresh and all the missing thumbnails were picked up immediately

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[–] KLISHDFSDF@lemmy.ml 1 points 4 months ago (1 children)

Restart jellyfin and take a look at the logs? There may be some useful info there pointing to the issue. Go to your 'dashboard' then click 'Logs' - look through that see if anything stands out. If that doesn't work you may need to enable debug logging: https://jellyfin.org/docs/general/administration/troubleshooting/

[–] UntouchedWagons@lemmy.ca 1 points 4 months ago

Well I enabled debugging, restarted jellyfin and performed all three refresh operations and the episodes are still missing thumbnails. There was only one debugging item in the log about a broadcast socket