What is this permission set supposed to do? Out of the box it doesn't appear to grant access to any of the Causeview objects, just access to the Causeview Apex classes and VF pages.
The "Full Causeview User" does not grant access to Causeview Objects. You would need to assign a Causeview license to the user to grant them access to all Causeview objects and fields. The Full Causeview User permission set is only for granting access to Apex Classes and VF pages.