Why is an employee's pay rate that was updated via the Bulk Actions screen, not pulling through to the Edit Payslip screen?
The employee's updated pay rate may not pull through onto their Edit Payslip screen, because their Basic Pay component was also edited on the Bulk Actions screen, and is therefore overriding the pay rate detail.
In order for the pay rate to pull through correctly, delete the Basic Pay component using the Bulk Actions screen.