Hello,
Thank you for contacting Rank Math and sorry for any inconvenience that might have been caused due to that.
Please make sure that you enable the option to display the categories in the breadcrumbs under WordPress Dashboard > Rank Math > General Settings > Breadcrumbs:

Hope this helps solve your issues.
Don’t hesitate to get in touch if you have any other questions.
Hi, yes I did enable that option but only the main category is showing. I want subcategories to show up too.
Hello,
Do those sub-categories are set as primary on the pages that you want them to show up?
https://rankmath.com/kb/how-to-choose-a-primary-category/
Please note that if you don’t set the sub-categories as primary only the main category will show.
Don’t hesitate to get in touch if you have any other questions.
ok that solves the problem. thanks
Hello,
Glad that helped.
Please feel free to reach out to us again in case you need any other assistance.
We are here to help.
Thank you.