centering of video player frame

Hi there!

I have had an issue with the centering of the video player frame for the in-built video player for the Responsive Video Theme.

It is weird the small player works, it’s the larger player that seems off-centered, pushed to the right a bit. I have tested other players and they don’t have this issue.

How can I either correct the centering of the video player frame or replace the player?

Thanks.