If you have made changes within the system for an employee and it has not pulled through to the rota, you can update by firstly ensuring the rota in question is open and then follow the below steps:
Find the employee using the organisation search then click Payroll.
Click Rotas then click on the Edit.
Unselect the Show on rota.
Click Save and then go back in and then tick again the box Show on rota, the rota will have updated.