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Missing YouTube video thumbnails [fixed] (self.meta)

submitted 2 years ago* (last edited 2 years ago) by necropola to c/[email protected]

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Does anybody know why and when thumbnails for YouTube videos are shown or not? It appears to depend on the lemmy instance the posts are served from:

Without Thumbnails

With Thumbnails

Update: It's not only YT thumbnails which aren't shown. This is your post about the free 24 slot bag as shown on lemmy.wtf (without thumbnail), lemmy.world (without thumbnail) and feddit.de (with thumbnail):

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[–] necropola 3 points 2 years ago

This was fixed on lemmy.wtf a while ago but apparently this was still an issue on lemmy.world which now has been fixed:

https://lemmy.world/post/1421693

The docker-compose.yml I copied from somewhere when setting up lemmy.world apparently was missing the external network for the pictrs container.. So pictrs was working, as long as it got the images via Lemmy. Getting the images via URL didn't work...

Note: This only fixes new posts. In order to fix old posts you need to edit/save them once.