We are having an issue with saving certain pages. We are getting an message saying error saving, and in the console we are getting a notice admin-ajax (404). We can get a save or two, but then we can not save after that. It is only happening on certain pages. At first it was fundraiser pages from the plugin. So we deactivate. the plugin. But we still can not save on some pages.
This is one of the pages we can not save on. We can save once or twice and after that we can't.