Convert to a container removing formating

I’m slowing moving our website to a new provider, but due to problems with the current install I’m doing this more manual than usual. I’ve exported and imported all the pages (all made in elementor) and I’m now tweaking each page with the correct/updated images, text formating, seo, etc… I’ve also been converting each section to a container without any issues, until today. Now when I convert each section and view the page it’s compleately changed it, going to full screen and losing the background image in the header etc… Is this a bug or do I have to take extra steps now when converting to set it back to how it should look? Using OceanWP theme.

Thanks for reading.

The page I need help with: [log in to see the link]