No audio in my full screen video all of a sudden

Hi,

Thank you for the inquiry.

The background of any color section is muted by default because you cannot autoplay a media file if audio is enabled. Only muted autoplay is allowed as described in this article.

// https://developer.chrome.com/blog/autoplay/

Chrome’s autoplay policies are simple:

Muted autoplay is always allowed.
Autoplay with sound is allowed if:
The user has interacted with the domain (click, tap, etc.).
On desktop, the user’s Media Engagement Index threshold has been crossed, meaning the user has previously played video with sound.
The user has added the site to their home screen on mobile or installed the PWA on desktop.
Top frames can delegate autoplay permission to their iframes to allow autoplay with sound.

Best regards,
Ismael