Embedding video in Hello Bonsai form doesn't work

I tried using all the embeddable links that are provided and none of them works. I then tried the link from YouTube or Vimeo and instantly got embedded.

I would love to get some guidance in case I did something wrong. Here’s one example of me trying with Gumlet:

Found this resource and was able to embed it using the “code preview” and the asset id of the video.