Hi Sara,
Authorization to access reports dashboard can be controlled using below authorization objects with display access.
GRAC_SYS and GRAC_REQ authorization objects
Earlier this report was checking objects GRAC_SYS and GRAC_REQ with ACTVT 01 for displaying the reports which we recently raised to SAP and got it fixed through below SAP note
2113085 - UAM: Incorrect authorization activity check for access request and provisioning reports
Regards,
Madhu.