Calculated rating is not reflected in the performance document

In our end-of-year evaluation we are doing a calibration process after the manager evaluation.

We are doing calibration with the talent review module, and the performance rating can be changed in the calibration.

We are using a FF that updates the calculated rating field with the talent review final rating.

The fast formula updates the rating only if the performance document's current task is manager evaluation. In other tasks, for example Review meeting held, the calculated rating stays like it was before the calibration.

Here is an example:

The manager rates an employee with a Successful rate.

In the calibration process (Talent Review) the rate changed to Outstanding.