Hi Cindy,
Thanks for reaching out and thanks for using BoldGrid Post and Page Builder for WordPress!
Caching is one of the most common reasons for this type of error. Normally changes made in your page editor will take effect immediately, so that leads me to think the site is still loading an older version of the webpage. Be sure to clear any cache (including browser cache), associated with your website after you publish your edits. Aside from browser related cache, you may have a caching plugin setup on your WordPress site and/or server side caching through your web host. You want to make sure all cache is purged.
If the problem persist after clearing your cache. Make sure your theme, plugins, and WordPress version are all up to date and then try deactivating each plugin one by one to determine if there is a conflict preventing your page from updating properly. Sometimes plugins that are out of date or no longer supported will cause problems with functionality with your theme and other plugins.
I hope this helps. Please reach back out if you need further assistance.