I have tested my local installation but I am not able to replicate the issue you have described. Please check the versions of your Pro theme and the bundled plugins are up to date. Also, please try testing for a plugin conflict. You can do this by deactivating all third party plugins, and seeing if the problem remains. If it's fixed, you'll know a plugin caused the problem, and you can narrow down which one by reactivating them one at a time.
Please also note that you can save the work you did for the header, content, and footer builder as a template so you can have a backup.
Hope this helps.