Hello,
Thank you for contacting Rank Math today, and we apologize for any inconvenience this may have caused.
Please check if you are using a Firewall, as there are chances that it will prevent saving the data. You can check this link for more information:
https://rankmath.com/kb/meta-data-not-saving/
I hope this information is helpful, and please do not hesitate to contact us if you require any additional support.
Thank 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.