Hello,
Thank you for contacting support.
When there is data missing upon saving the post it’s because the REST API route that our plugin uses to update the data in the database is getting blocked or is failing.
The route that gets used for this purpose is the following: https://yourdomain.com/wp-json/rankmath/v1/updateMeta
When that route is returning an error the data won’t get updated and you can check if that is working correctly by opening the browser network tab before saving and filtering for that route to see whether is returning a 200 status code or anything different, which would cause the issue.
Here’s an article about the same: https://rankmath.com/kb/meta-data-not-saving/
Don’t hesitate to get in touch if you have any other questions.
I have followed the instructions provided especially regarding to Chrome Console Error and attached is the feed back i got
deprecated.min.js?ver=e1f84915c5e8ae38964c:2 Bottom margin styles for wp.components.CheckboxControl is deprecated since version 6.7 and will be removed in version 7.0. Note: Set the __nextHasNoMarginBottom prop to true to start opting into the new styles, which will become the default in a future version.
api-fetch.min.js?ver=d387b816bc1ed2042e28:2
POST https://nubapoly.net/wp-json/rankmath/v1/updateMeta?_locale=user 403 (Forbidden)
post.php:1 Uncaught (in promise) {code: ‘invalid_json’, message: ‘The response is not a valid JSON response.’}
