hr_assignment_api.update_emp_asg_criteria errorring with People Group Category Error after Patch

Hi

We have a number of custom processes that calls hr_assignment_api.update_emp_asg_criteria.

We are having an issue following application of HR RUP Patch - R12.HR_PF.B.Delta.13 Release Update Pack (Patch 30066331)

Calls to this API now are failing with the error: ORA-20001: FLEX-NULL REQUIRED SEGMENT: N, SEGMENT_NAME, People Category, N, ERRMSG, The following field is mandatory. Please complete the required details: People Category

I have investigated and found that HR_ASSIGNMENT_API version has changed

from /* $Header: peasgapi.pkb 120.20.12010000.47 2018/07/25 12:35:10 gahluwal ship $

to /* $Header: peasgapi.pkb 120.20.12010000.50 2019/11/22 05:24:26 pathota ship $ */

and in the Upgraded version of HR_ASSIGNMENT_API there is now