Why does leave not accrue when it is configured for a specified amount of hours to accrue per month?

Why does leave not accrue when it is configured for a specified amount of hours to accrue per month?

This applies to all PaySpace editions.

Employees will not accrue leave if, for instance, the Annual Leave type is set to accrue 6 hours per 1 month.

      Navigate > Configuration > Human Resources > Leave Administration > Leave Scheme Parameters

      

When leave is configured using an hourly accrual rule, the system is designed to look at "days" or "hours" (not "month").