This is how the Payprofile window works

Compensation module (HR): Only non-separated employees can be seen here.

Payroll module :
The Employee hyperlink when clicked, shows a list of non-separated employees

If you know the id of the active employee, you can enter it in the field and click the 'Search' button. The employee's name will be hyperlinked below and you can click it to view the record.  If the employee is separated, the name will appear in the field above but will not be hyperlinked in the field below (ie you cannot view the record).

To see a list of all payprofile records, leave all fields blank and click the 'Search' button.  Both separated & non-separated employees will be displayed ordered by employee id.  You can view records by clicking the hyperlinked name - applicable to both separated & non-separated employees.

If you select a particular pay group, a list of all employees (both separated & non-separated) for the group will be displayed. You can view records by clicking the hyperlinked name.

Note that you cannot edit payprofile records for separated employees.

Viewing employee payprofile records is dependent on the user having the required permissions - level, paygroup, menu access, etc, as well as not having restricted acces via the 'Restrict Position Access' option in the Security module.