Conflicting Security Profile for Line Manager and HRMS Manager Role

Summary:

We have existing country HRMS manager roles where role is enabled to see country specific business units only. Now we are enabling hiring manager role where the requirement is to view all BU while hiring from MY team tab. Now the conflict arising where HRMS manager is seeing all LE's business units. We tried adding separate roles and combining both roles. Still the issue. Need to understand why this conflict happening

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