If some of your users cannot find new employees in the system, then you will need to check your access setting at Security Setup as follows:
Go to EPE Control, Security Setup, and log in to the database.
Click the User Settings tab, and check which Security Group ID your user belongs to.
Click the Group Setting tab and select the user's Group ID.
Click the Access Query three-dotted button.
Select the user's linked Query Name and click the Use Custom Query three-dotted button.
Change the query as in the example below (depends on whether you are using department, section, or category. The Example below is using Section, and the user is allowed to view the STAFF section.
Employee.SectionId in ('STAFF', 'None') or Employee.SectionId is NULL