cononical tag problem in rank math

Hello,

Thank you for contacting Rank Math, and sorry for any inconvenience that might have been caused due to that.

By default, Rank Math makes use of the current post/page URL as the canonical URLs.

The image shared by you is a bit unclear. Could you please share the affected URL so that we can troubleshoot further?

Meanwhile, here is a blog that might come in handy to understand more about canonical URLs:
https://rankmath.com/blog/canonical-urls/

Looking forward to helping you further.

Thank you

Hello,

We would love to help you further.

Unfortunately, the example URL shared by you is not working.

We might need to take a closer look at the settings. Please edit the first post on this ticket and include your WordPress & FTP logins in the designated Sensitive Data section.
Please share the affected URL with us as well in the sensitive data section.

Please do take a complete backup of your website before sharing the information with us.

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:

https://wordpress.org/plugins/temporary-login-without-password/

You can use the above plugin in conjunction with the WP Security Audit Log to monitor what changes our staff might make on your website (if any):

https://wordpress.org/plugins/wp-security-audit-log/

We really look forward to helping you.

Thank you