Change in Grade step rate is not syncing in salary even we already ran Sync Grade Step rates

Hello experts,

We have some changes in the grade step rate values and it needs to be reflected in the Salary.

The current salary of the employee is 2541000, but we changed the current step rate value of this grade step to 2624000. So the employee should have 2624000 now as his salary.

But after we ran the 'Synchronize Grade Step rates', the salary is still not updating.

The HDL is giving us this error:

Please take note that the employee is still in the same grade step, we just changed the grade step rate value of this grade step from 2541000 to 2624000.

Please help.