IFS Business Reporter Azure AD SSO Not Rendering Properly, Continuously Loads

Hi all, I am newer to IFS Cloud. We are upgrading from Apps9 to 23R2 this Summer (fun!). 

Basically, Azure AD SSO works fine in the Microsoft Edge browser but fails to work specifically in IFS Business Reporter on my machine. I have had 4 other Users try it with no success.  We had our IT Admin try it and it works for him, but it doesn’t work for anyone else.  

Here is what I tried: 

• Validated Azure AD SSO Configuration:

  • Confirmed the Azure AD login works in the Edge

  • Confirmed that another user successfully logs into IFS Business Reporter with Azure AD SSO.

    • Out IT Admin had a success on his account/device

    • Myself & 3 others had no success 

• Cleared Local Cache and Credentials & Reinstalled: 
  • Removed cached credentials from Windows Credential Manager.
  • Deleted all IFS-related files under AppData\Roaming and AppData\Local.

  • Completely uninstalled and reinstalled the IFS Business Reporter application + VS 2010

• Ensured Environment Compatibility per Technical Documentation: 
  • Verified the correct version of the .NET Framework is installed and enabled.

  • Set Microsoft Edge as the default browser for HTTP and HTTPS.

• Duplicated Working User IFS Profile (IT Admin):

  • Duplicated a working user account in IFS with the same roles and permissions.

  • Attempted to use the duplicated account, unsuccessful.

• Checked IFS and Azure Configuration:

  • Verified IAM client settings in IFS, ensuring proper redirect URIs and Azure AD mappings.

  • Access restricted for most of Azure, but redirect looked fine, obviously it works if our IT Admin was able to get in. 

Any help is appreciated! Thanks!