Hello,
Thank you so much for getting in touch and bringing your concern to our attention.
When turning on automatic redirection. It should take effect right away after you change a permalink of a post.
Please clear your website cache after changing a post URL and see if the redirection is working.
If not, please click these buttons in Rank Math > Status & Tools > Database Tools:
https://rankmath.com/kb/rank-math-status-and-tools/#recreate-missing-database-tools
https://rankmath.com/kb/rank-math-status-and-tools/#fix-analytics-table-collations
Then, try changing a post URL once again.
Let us know how that goes. Looking 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.