Perform Recruiting Candidate Selection Process Actions is not invoking Recruiting CSP Fast Formula

Summary:

We have configured a fast formula that checks a DFF from the requisition. When the value matches, the candidate's state is moved.

The fast formula action will automatically trigger when the required value is present in DFF, and then moving the candidate to the state associated with the fast formula.

However, if the candidate is already in the state associated with the fast formula and we later update the job requisition DFF field, and running the process "Perform Recruiting Candidate Selection Process Actions" results in no action being taken.

What is the process in these scenarios to ensure that the functionality works and that candidate fast formulas are checked without changing the state or phase?