Hello,
Thank you for contacting Rank Math, and sorry for any inconvenience caused.
I logged in to your website and checked the settings.
I was able to see the Rank Math Meta Box on your posts and also edit the SEO information.
Check the screencast in the sensitive data section.
Please clear the Rank Math transients by going to Rank Math > Status & Tools > Database Tools > Remove transients

Then, clear your website and browser cache and check again.
If you are facing the issue on some specific post, please share the URL so we can check further.
We look forward to helping you.
Hello, thank you so much! It may have been the browser cache because I went back and still couldn’t edit anything. But then I cleared cache and transients and everything works.
Thank you, as always awesome support & product. That’s why I switched themes just so I can keep using your plugin 🙂
Hello,
We are super happy that your issue is resolved. If you have any other questions in the future, know that we are here to help you.
If you don’t mind me asking, could you please leave us a review (if you haven’t already) on https://wordpress.org/support/plugin/seo-by-rank-math/reviews/#new-post about your overall experience with Rank Math? We appreciate your time and patience.
If you do have another question in the future, please feel free to create a new forum topic, and it will be our pleasure to assist you again.
Thank you.