OAF Error - View Attributes cannot be retrieved. View Instance not found or undefined.

Hi,

My JDev version is 10.1.3.5.0.3 and EBS 12.2.5.

I'm trying to achieve Show Hide functionality on an oaf page for a Person Assignments (Master) and its related Accrual plans (Detail).

I've create 2 VOs as

PersonAssignmentsVO1 - based on SQL query.PerAssignmentAccrualsVO1

These VOs are linked through a VL (PerAssignmentAccrualsVL1) using AssignmentId column.

PerAssignmentAccrualsVL1

The OAF page is having an advancedTable region style to display person's assignment records and a detail section to display the Accrual details.

In the BC4J section of the property inspector of PersonAssignmentsRN, when I click on the 'Edit' ellipsis (to select AssignmentId), its throwing below error