This theme has honestly been around a very long time and been through a lot of people and I’ve heard them all. I know it’s easiest to simply blame the theme author when you have a frustrating issue, but I’ve honestly never heard of such an issue. It’s very unlikely that this has anything to do with the theme.
What have you done to troubleshoot? Are you using the latest version of WordPress? The latest version of the theme? Have you tried disabling all plugins? Any plugin could be hooking in when WordPress saves a post/page.
The only feature the theme even has that corresponds in any way to saving a post or page is its SEO features.