duplicated webpage, edited duplicate, saved and there are only black boxes without any content

Site URL: https://www.interactionmedia.com/documentaries

I'm helping a client update the site so don't have a lot of experience with this... Started working on it yesterday after duplicating the page.  Today after finishing, I saved and it lost all the content (except for black boxes) on both the original and duplicate.  Am I completely screwed?

and it seems like the content may still be there, just not visible.  If I click in an are where there was a vide, I can hear the sound from the video...

I'm pretty sure your content is there. I was looking into the issue but the page is now gone so I can't help further.

There did seem to be some opacity issue. Something to do with the Animation Fade effect.

thanks.  Just created a simple replacement page...  will investigate further...  and if I can't figure it out, will send you a url for the copy I made...

Here's the link to the page I was working and and saved which corrupted the original page also

https://interactionmedia.squarespace.com/documentaries-mgtest1