unspecified type

Hello,

Thanks for getting in touch with us.

It is hard to tell what it could be without seeing an example or a screenshot.

Can you please share a URL of the page with the issue so we can check in more detail?

Thank you.

Hello,

It doesn’t look like that particular unsupported Schema is being added by Rank Math. The NewsArticle one is added by Rank Math and it is showing up correctly.

Please disable Rank Math temporarily and run the test once again. If the error persists, then you know it was not caused by Rank Math.

If the error goes away after you disable Rank Math, we might need to take a closer look at the settings. Please 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:
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.