We might need 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:
I have been able to reproduce the issue on your site but I have not been able to replicate the same on my test environment, it is likely that the issue is stemming from a plugin or theme related conflict.
Please help us to diagnose this by performing the steps outlined on this page: https://rankmath.com/kb/check-plugin-conflicts/