Managers can not access their direct employees they get a blank screen

Summary

Managers can not access their direct employees they get a blank screen

Content

Hello,

We have a critical issue that managers , which direct employees can not enter theirs direct employees file.
The managers has a role of line manager which has the full hierarchy access - please see screenshots.

She gets a blank screen .and also all other managers ,

*with a VIEW all role we have  full access of View all .employees

Thanks
Revital