No index at my home page Despite of having correct setting of robots settings

Hello,

Thank you for contacting us. We apologize for any inconvenience this issue may have caused.

Rank Math only automatically adds the noindex to the robots meta of myaccount, checkout, cart pages and empty category pages as they are unique for each user.

In this case, please try to use the following filter on your website and see if that works for you:

add_filter( 'rank_math/frontend/robots', function( $robots ) {
    if( is_cart() || is_checkout() || is_account_page() ) {
        $robots['index'] = 'index';
    }
    return $robots;
});

Here’s how you can add filter/hook to your WordPress site: https://rankmath.com/kb/wordpress-hooks-actions-filters/

Let us know how it goes. Looking forward to helping you.

Thank you.