Hello,
Thank you for contacting Rank Math support, and sorry for any inconvenience that might have been caused due to that.
I checked the affected page directly to Google search and it seems to be index as you can see in my screenshot below:

If you don’t see your website on Google using a specific search term, please note that ranking on Google depends on so much more than just your on-page optimization. You could have the perfect article and still struggle to break the top 10 in SERPs. Here are some of the factors Google considers when ranking you:
1. Your website’s authority
2. Your content’s quality and how better it is than the other article currently ranking.
3. How competitive the keyword is.
4. How many backlinks you have and if they are better than what the other guys ranking for that keyword have.
5. Your website’s crawlability.
6. Frequency of new content and content updates.
7. So much more that there is a dedicated blog post on it by Brian Dean 🙂 https://backlinko.com/google-ranking-factors
We are looking forward to helping you.
That’s not the url I sent in my screenshot and I think I met all the requirements you listed and even the ones on the blog post
Hello,
The screenshot in our previous reply is for the URL you shared in sensitive data. I have shared a direct link to the search results page in the sensitive data. If the link is incorrect, please share the correct one.
If the link is correct, then Google is indexing URLs on your website but may be taking long to do so, in that case there is much we can do to speed up the process as it is up to Google to speed up the process or not.
Hope that helps. Please let us know if you have questions.
Hello,
The link you shared is also indexed already by Google since the 18th of September. Please refer to my screenshot below:

Please do not hesitate to let us know if you need our assistance with anything else.
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.