Hi,
Thanks a lot for your query and we are so sorry about the trouble this must have caused.
You are doing it properly.
Could you please confirm:
1. Are you using Apache or nginx?
2. Have you tried after hitting the save button once in WordPress Dashboard > Settings > Permalinks?
Let me know how that goes.
Hi
It’s working fine now
Thanks
But to redirect it brings to the visitor a new page that tells him he’s being redirected. And it takes 5 seconds
Is there a way that customer enters the new page directly without waiting or showing this page?
HI there,
Thanks for the follow up.
I am glad that this is now working correctly 🙂
To fix the debugging preview, please head over to Rank Math > General Settings > Redirections and disable the Debug redirection option as shown below:

I hope this info helps. Thank you.
Hello,
Thank you for the follow up and apologies for the delay.
We might need to take a closer look at the settings. Please edit the first post on this ticket and include your WP logins in the designated Sensitive Data section.

It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:
https://wordpress.org/plugins/temporary-login-without-password/
You can use the above plugin in conjunction with the WP Security Audit Log to monitor what changes our staff might make on your website (if any):
https://wordpress.org/plugins/wp-security-audit-log/
We really look forward to helping 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.