Hello,
Thank you for contacting Rank Math and sorry for any inconvenience that might have been caused due to that.
Rank Math is replacing non-English characters (the ü) with their equivalents so you don’t have issues with your permalink. But don’t worry, for Google it means the same, so it won’t affect your SEO (in fact, it will be good for the site since Google wouldn’t read ü in your permalink).
Looking forward to helping you. 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.