author option not showing in sitemap setting

Hello,

Thank you for contacting Rank Math, and sorry for any inconvenience caused.

Please head over to Rank Math > Titles & Meta > Authors > Enable Author Robots Meta > Check index checkbox

Then, flush the Sitemap cache by following this video screencast:
https://i.rankmath.com/pipRDp

Hope this helps.

Don’t hesitate to get in touch if you have any other questions.

Hello,

We are super happy that this resolved your issue.

If you have any questions in the future, please feel free to create a new forum topic, and it will be our pleasure to assist you again.

Thank you.