Hello,
Thank you for contacting Rank Math, and sorry for any inconvenience caused.
Rank Math is fully compatible with Multisite so you shouldn’t have any issue. And in the case you have, remember we will be here to help you.
I highly recommend going through the following guide to set up the plugin completely and correctly:
https://youtu.be/dTvZuMRzW4w
and
https://rankmath.com/kb/how-to-setup/
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.