CMS Multi reference field problem

Hi All,

I’ve have an issue with multi-ref and ref fields in the CMS Collections in that I’d like to show a category in both ‘All categories’ as well as in ‘cat 1’, ‘cat 2’ etc. I had this working fine a sandbox version of a site.

And recreated on the build version of the site but cannot get the multi reference field to work (Under ‘Ready to go courses’ - Cloudtrainer build)

Here’s the preview link:

Any help appreciated!