If you have terminated an employee incorrectly and then reemployed them the below will get them showing on the rota again, follow the below steps:
Search for the employee and select the employee by going onto their profile.
Choose Admin and then click Refresh Rota.
Select Yes in the pop-up.
📌Note: This will then have the employee you have selected reloaded on their rotas until the new termination date you have set.