Run Payroll Costing Results Report tasks to an existing payroll flow pattern: one with Scope set to

We added two Run Payroll Costing Results Report tasks to an existing payroll flow pattern: one with Scope set to Summary and the other to Detail.

When the flow runs, the Summary report returns data successfully, but the Detail report returns no data. However, the Detail report returns data when run separately with the same payroll and dates.

Please assist in identifying why the Detail report is not retrieving data within the payroll flow.