Route Using in Management Hierarchy doen't return Project Manager

Content

I setup approval transation for Transfer action. Everyting works correctly (IF conditions, other approval flows) except one step: 

• One of approvers should be Project Manager, so I did the following setups (please see attached screenshot). As Route using I selected "Project Mananger" but as result system always return the information about Line Manager.
• When I change the number of levels (Start with Employee and Top Approver - Manager) system reacts correctly to number of approvers and adds Employee in the flow, but Supervisor stays always with "Line Manager" type instead of "Project Manager" as it is expected.

What could be the cause of such system's behaviour?