On Requisition creation page, organization is not showing under organization field

Summary:

Hi

While creating a requisition, under Requisition structure section the Organization field dropdown is showing blank.

I have created a Organization Tree and added a legal employer, Business unit and 2 departments in the Organization tree version. I did online flattening and activated. But it is showing only 1 department under Organization field dropdown.

Please let me know, why this problem is happening and how can I solve this issue.