Lightbox youtube not displaying on mobile

Hi all,

I have a lightbox element that connects to a YouTube video. The lightbox element works fine on desktop, tablet, and some mobile (landscape) sizes.

HOWEVER, on mobile portrait, the lightbox appears to load (background darkens, etc.) but the video doesn’t display.

If I turn my phone to landscape the video will display (Samsung galaxy s21+).

Would GREATLY appreciate thoughts - thank you!

Here is my public share link: ** Webflow - medicalsecretsmd **
(how to access public share link)