Have you synced the dataset from sandbox to live?
https://support.wix.com/en/article/syncing-data-between-sandbox-and-live-database-collections
In the editor and preview you are working in the sandbox environment, whereas all your site users will be using the live environment.
Otherwise, when you make your changes and save and publish your website, if you already had the website open then you will need to refresh your browser for the changes to come into effect.
Finally, as this is editor related and not really a code issue, for this you would be better suited going through Wix Support themselves. https://support.wix.com/en/about-wix/contacting-wix-support