Hello,
Thank you for contacting Rank Math and bringing your concern to our attention. I’m sorry for any inconvenience this issue may have caused you.
I’ve replicated this issue on your site and found these error message upon saving the keyword:
api-fetch.min.js?ver=a783d1f442d2abefc7d6dbd156a44561:2
POST https://ultbit.com/wp-json/rankmath/v1/getFeaturedImageId?_locale=user 403
Those errors usually are caused when something is blocking access to the WordPress API REST.
Since you have already tested for a plugin conflict, please contact your hosting support and check if something is blocking the WordPress API REST. Please also ask them to check the Firewall Settings and whitelist the updateMeta rule.
I hope that helps.
Thank you, and looking forward to your update.
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.