Thank you for contacting Rank Math and sorry for any inconvenience that might have been caused due to that.
I think it would help us a lot to take a closer look at the settings. Please edit the first post on this ticket and include your WP logins in the designated Sensitive Data section.
It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:
Thank you for letting us know, then do you want us to close this thread, or do you have any other questions? In any case, I will check about the issue and if I am able to replicate, I will notify the devs. Also, if you have any other questions/issues in the future, we are here to help you.