SharePoint online File viewer, Embed, Youtube web parts load with a preview icon

Hello,

I have the same issue. We have a social media feed on the intranet homepage using the Embed web part. When the page is loaded/refreshed, there is a gray overlay, and it disappears when hovered over. This odd behavior is consistent across multiple browsers (Chrome, Firefox, and Edge). It started appearing on our site about a few months ago. I am hoping to find a solution here in the tech community.