How do we get the Total Seniority Days Adjusted Automatically in Employment Seniority Date

Summary:

We have a requirement with business to update the dates in multiple rows which are created at the "Original Seniority Date" when an employee is Rehired. Currently with the Fast Formula of type - Employment Seniority Date Adjustment we are able to adjust the days only for the first record which was created during the hire of an employee.

With further customization of the Fast Formula logic we are able to derive the number of days that should be adjusted for the other records but it is not getting adjusted in the Front End. Please advise if this is any limitation of the functionality or is there anything else that we need to configure at the set up level.