Hello,
The only option in Rank Math that could be doing it could be the “Open External Links in New Tab/Window” setting, that you can change in the Rank Math plugin Dashboard, as you can see in the following screencast: https://i.rankmath.com/3H9DlS
Could you test it and let us know?
Looking forward to help you.
Hello,
I would like to add that it might only be happening because you are using an IP. So, our plugin might be counting your links are external since it is built to work on domains.
Once you use a domain, our plugin will be able to tell the difference between an internal and external link better.
Hope that helps and 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.