Hello,
Thank you for contacting Rank Math and bringing your concern to our attention. I’m sorry for any inconvenience this issue may have caused you.
I’ve checked the page, and it is already set to index. Also, it is already included in your sitemaps and your robots.txt is working fine.
Please use the URL inspection tool in your GSC account to ask Google for a manual indexing request (request indexing button). You can also keep an eye on the coverage section of GSC to get notified if any issue or error shows up for the affected products.
If Google still doesn’t decide to index those posts even after crawling your site again, then there is nothing you can do other than wait.
Here’s a link for more information:
https://www.searchenginejournal.com/definitive-list-reasons-google-isnt-indexing-site/118245/
Hope that helps.
Thank you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.