When a nonresident beneficiary, marked as an individual is present the PA Schedule NRK-1 and Schedule RK-1 are both generated.

This should only occur when the bene is not marked as an individual.

Form instructions:

The estate or trust must also submit PA-41 Schedules RK-1 for resident individual beneficiaries and PA-41Schedules NRK-1 for nonresident individual beneficiaries with the estate or trust’s PA-41, Fiduciary Income Tax Return.
If the beneficiary is an entity such as a partnership, PA S corporation, estate or trust, the estate or trust completing the PA-41, Fiduciary Income Tax Return, must provide the entity with both a PA-41 Schedule RK-1 and NRK-1 showing the entity beneficiary’s share of taxable income.

Solution:

This issue is scheduled to be resolved in a product update 04/30/2019 (Version 39.0430).