How to reproduce

• go to the demo : https://demo.ametys.org/nightly-intranet-cms/intranet/index.html?&foo=0.3752267235983954 (Ametys Demo 4.10.0-20250918-0019-SNAPSHOT)
• Create a page with the "page" template
• Create news content
• Insert an illustration
• Add text
• Add a long-form video at the bottom of the content
• Access the preview

The video is displayed in the footer