FYI notification is not coming to Intermediate approves for Requisition Adhoc approval

Summary

How FYI notification can be sent to all other Intermediate user's who are the part of approval Hierarchy

Content

1.Create a Requisition and submit for approval.
2.There is only one approver in approval hirerchy (AAA 1st Approver)
3.Now , when approver AAA gets the notification to approve, he opens it and create a ADHOC approval route with two other approver's.
4. Selected two approver's :(BBB and CCC )
5. Now the First Approver approves and Requisition sent for approval for user BBB (created in AHDOC approval 2nd Approver)
6. This user approves the requisition and it went to next final user CCC 3rd approver.