Display Limited To Works on backend but not front

I am using the 'display limited to' for custom fields option in Hikashop business after upgrading from essential for this feature. I cant find an answer online in the forum that works.

I have added some customer fields on the products. The fields appear in the backend correctly. ( I only see the field if the field it is dependent on has the correct value when creating a new product. )

However in the front end, i see all the fields no matter what. Some posts refer to saving multiple times, but this seems to be something else and did not work.

I have also tried toggleing the 'diplay custom item fields' settings from inherited, yes and no but seems to make no difference.

I am probably missing something fundamental. Any help appreciated