Hello,
Thank you for contacting Rank Math and sorry for any inconvenience that might have been caused due to that.
It seems it had a temporal issue regenerating the sitemaps. I just resaved the permalinks and the sitemaps are now generated fine and working. Could you check them?
Looking forward to helping you. Thank you.
Hello,
We are super happy that this resolved your issue.
If you don’t mind me asking, could you please leave us a review (if you haven’t already) on https://wordpress.org/support/plugin/seo-by-rank-math/reviews/#new-post about your overall experience with Rank Math? We appreciate your time and patience.
If you do have another question in the future, please feel free to create a new forum topic, and it will be our pleasure to assist you again.
Thank you.