Vimeoの非公開動画にはサムネイルがありません

[merefield (Robert)]

Try using the topic list previews sidecar plugin. It allows you to force thumbnail recreation upon rebuild:

Topic List Previews Theme Component

This is now a Theme Component but has the option to add a complementary plugin. [GitHub-Mark-32px] Repository: get the code here: https://github.com/paviliondev/discourse-tc-topic-list-previews Install guide: Install a theme or theme component Install this theme component This can be complemented with the ‘sidecar plugin’: https://github.com/paviliondev/discourse-topic-previews-sidecar to add the following features: ‘actions’ (bookmarking, linking and liking from Topic List) Thumbnail P…

Might help.