Directorist Plugin

Hi

I am using the Directorist plugin for my site RWJemmett.com

Here is the plugin homepage:
https://aazztech.com/product/directorist-business-directory-plugin/

Unfortunately when Rankmath is activated the category meta is lost. I have checked for example using the Facebook debug . – even the page title is lost

Here is the facebook debug: https://developers.facebook.com/tools/debug/?q=https%3A%2F%2Frwjemmett.com%2Fphotography-directory%2Fyoutube-photography-channels%2F

If I deactivate RankMath it is improved.

Just to say individual Directorist post/listings work well
https://developers.facebook.com/tools/debug/?q=https%3A%2F%2Frwjemmett.com%2Fdirectory%2Fjamie-windsor%2F

Is there a fix for this please.