Embed Blocks: Youtube embed code not consistently displaying vertical videos

Hello,

I am using embed blocks to display YouTube videos vertically on this page:

https://www.threedom.com

I am doing the same exact thing everytime...get YT embed code, change dimensions and paste in the Code Snippet area...

It words for some of the videos and not for others as you will see...below are embed codes for the video that displays correctly and for the one that doesn't...it's the same issue for both large and small videos on the referenced page.

Displays correctly:

<iframe width="240" height="427" src="https://www.youtube.com/embed/c6dKXSHOb74" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

Does not display correctly:

<iframe width=“240” height=“427” src="https://www.youtube.com/embed/lrWafnHzW_U" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

Thank you!

Muhsin

I did not solve the issue but have a temporary workaround that is actually pretty efficient. I simply duplicate the embed/video block that is displaying correctly and change only the small unique code after embed/ in the link and it works perfectly and displays correctly.

I am super curious why the exact code is inconsistently displaying the embedded video.

Any insights would be appreciated!