If the Role Name as displayed on reports field within the Role Hierarchy setup is empty, the Role Name column displays as empty or blank in Salesforce reports. This article explains how to fix this issue in Salesforce Classic, Lightning Experience, and via bulk update using Data Loader.
To resolve the blank Role Name column in reports, update the "Role Name as displayed on reports" field on the affected Role record. This can be done manually through Setup in Classic or Lightning, or in bulk using the Data Loader on the UserRole object.
Administrators can update multiple Role Name fields at once using the Data Loader on the UserRole object. The relevant field in Data Loader is RollupDescription.
SELECT Id, Name, RollupDescription FROM UserRole000385298

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