There are two assignments in system and trying to delete one assignment (assume stale) on submission of other assignment. The stale assignment is getting deleted but current assignment is not moving to next stage or to next assignment.By default It's showing confirm harness and need to open the case again to proceed with case in advance .
I see, below flow message Info in tracer .
trying to calculate the handle of a class whose instances may not be written to the database: Work-: code: SQLState: Message
Usage of pxDeleteAssignment activity is saying the following: This activity can be called standalone or from a flow utility shape. If UpdateHistory is set to true it will add a History entry about the Deletion of assignment.
Can you call it from a utility shape for a quick try instead of calling it from your activity.