Why the approval flow on Promote action doesn't work correctly?

Summary:

We set the approval flow on the Promote action to let the HRs take in charge the possibility to approve or deny a promotion, but it automatically approves the transaction.

Content (required):

Hi, we have an issue about the approval flow of the Promote action: we set the application role HR, to let the Human Resources take in charge the possibility to approve or deny the promotion transaction.

So, the HR should approve the transaction, but it actually approves it automatically

Is there an issue or a bug on this specific transaction or maybe there's a mistake somewhere?

Thanks