Trying to embed an Instagram post with ACF

Hi,

I’m trying to use a the text editor custom field to embed an Instagram post in my article.
It seems to find the post, but it’s never fully displayed (the image doesn’t appear).

The result I want:
https://blaque.fr/influentes/tout-ce-quil-faut-savoir-sur/nicki-minaj

At the bottom of the page, you can see the Instagram post embeded correctly. For this one, I wrote the instagram blocquote inside the post-content.

The result I get, using a custom field:
https://blaque.fr/influentes/tout-ce-quil-faut-savoir-sur/viola-davis
Here, the instagram post isn’t displayed properly. It’s blank and says “see this on instagram”

Is it fixable?
Thank you

The page I need help with: [log in to see the link]