Hello,
Thank you for contacting Rank Math, and sorry for any inconvenience that might have caused.
Besides plugin conflict, a Javascript error can also provoke this error.
Open your website and head over to the post that it’s not saving the meta description.
If you are using Windows/Linux: press CTRL + SHIFT + J
If you are using Mac: press CMD + OPTION + J
It will open the error console, and if there isn’t any error, try reloading the page, and the error console will provide you with details: error type, where the error appears, and the line number.
Here is an easy guide for you to follow: https://rankmath.com/kb/meta-data-not-saving/#num-2-1-how-to-check-javascript-errors-in-chrome
Lastly, you may follow point #3 from the guide above, about whitelisting our API routes.
Let me know how it goes.
Looking forward to helping you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.