Regarding Robots.txt issue

Hello,

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

It seems the robots.txt is already configured correctly and the index is already set to the robots meta tag. This should not cause search engines to deindex your posts.

Can you please head over to your Google Search Console and look for any coverage issue so we can determine what’s causing Google to not index some of your posts on your site?

Looking forward to helping you on this one.

Hello,

The Discovered – currently not indexed indicates Google has discovered the page, and even wants to crawl the page. But this was expected to cause an overload on the site, hence Google has rescheduled the crawl. As a result, Google may delay this crawl for several days after it has been discovered and the crawl status would remain empty until then.

Here’s a link for more information:
https://rankmath.com/kb/crawled-currently-not-indexed/

I hope that helps.

Thank you.