Hello,
Thank you for contacting the support, and sorry for any inconvenience that might have been caused due to that.
Please make sure you have enabled your Rank Math breadcrumbs in WordPress Dashboard > Rank Math > General Settings > Breadcrumbs and use the code to display it on your theme.
Please see this screenshot: https://i.rankmath.com/MeFtgT
If you already did all that and the breadcrumbs still do not work, please let us know.
We are 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.