PXs fail when PX processes attribute(s) not present on user profile screen.
Errors:
A failure occurred evaluating a policy called "PxPolicy Name".
This method requires the presence of an attribute which was not provided. The attribute is named AttributeName".
Release : 14.4.2
Open a support case and reference DE576000(VAPP) and DE572522(Standalone). The support engineer will then be able to provide you with the appropriate hotfix.