Hi,
According to my knowledge the default behaviour of application is that, when a planner user right click on data form it can see the business rules attached to the data from and the user can run it. (we didn't set any business rule access). As show in the below image:

But in actual no business rule is visible to the users. As shown below:

I think the business rules disappear because we applied security on one business rule and now we have to apply security to all the business rules.
Kindly share you knowledge.
Regards