Background images are showing 404 not found.

So I published one of my static site to netlily and saw that background images/videos are not loading.

I checked the URLs it is something like this.
https:\/\/PLACEHOLDER.wpsho\/wp-content\/uploads\/2020\/05\/home-hero.mp4

I downloaded the zip version just to check if media files are there or not and found background mages are not included.

Please check if it’s a bug or problem from my side.

Thank you.