動画が埋め込まれていません

[Moin]

There is a topic very similar to yours

Videos not embedding

I’m struggling to understand why some videos embed in our forum and some do not. For example, if someone posts a YouTube URL it embeds as a playable video. Great. URLs from other sites don’t render as an embedded playable video, even though I can see the same URLs as embedded playable videos on other (non-Discourse) forums. So, are there restrictions somewhere? I don’t find anything in the settings.

Did you have a look at that?