Fix .NET Core Identity Authorization Error

I need help resolving an authorization error in my .NET Core 8 application using role-based authorization. Currently, permissions are not correctly applied, causing access issues.

Key Tasks:
- Diagnose and fix role-based permission issues
- Ensure correct access for users and roles
- Test to confirm resolution

Ideal Skills:
- Expertise in .NET Core 8
- Strong knowledge of Identity and role-based authorization
- Experience troubleshooting authorization errors

Please share your relevant experience and approach.