Why is the employee's leave accrual not reflected on the periods' Leave Balance Breakdown window?

Why is the employee's leave accrual not reflected on the periods' Leave Balance Breakdown window?

Should an employee be linked to an interim run that precedes the main run, the leave accrual will reflect under the interim run. 

      Navigate > Payroll Cycle > Payslip Pay Dates > Open Runs

      

      Navigate > Employee > Leave > Balances

The Main run -


      

      

The Interim run -