Hi Ana,
Please ensure that you maintain Public Holiday Calendar and generate WSR for the period for which you are running payroll.
Ideally, your WSR should be generated atleast 1 month before the period for which you are running payroll.
For details on maintaining public holiday calendar, please refer the below document:
Public Holiday Calendar and Work Schedule Rules
Let me know how things go after making these changes.
Thanks and regards,
Vivek Barnwal