How to check assignment status in Fast Formula?

I am trying to create a reimbursement element and I need to add a condition to the fast formula so that only active employees are processed.

I have tried to use GET_ASSIGNMENT_STATUS

However, employees that are not terminated or active status are still processed. For example, I have an employee that has a status of LOA - Personal. This employee should not be processed for this element.

Is there a way to add a check for this status?

I've attached a portion of the code with my logic.