Hello,

Sorry to say but it seems to be the Cache issue on your Site.

Because as we are seeing the Section under the Elementor editor on your Site, it seems to be appearing fine: https://ibb.co/1b7L09V

But not on the actual Site Preview. Sorry to say but sometimes when changes are appearing fine under the Page Builder editor or Theme Customizer and not on the actual Site Preview, it is mostly related to Cache issues on the Site and we are also noticing CDN/Cloudflare enabled on your Site too.

So, can you please ask your Hosting Provider to once try to disable the CDN/Cloudflare on your Site for the time being while you are Customizing your Site (if it is enabled, if not then ignore this part), flush it completely along with that completely clear your browser as well as Site and Server cache and then check back your Site again. Hopefully, you won’t find the issue again.

Best Regards.