Azure Virtual Desktop - Black Screens on logins - What we've tried so far

We also have a Microsoft ticket open and we notice that after installing the black screen issue fix (KB5045594 Preview) SSO issues and losing network connectivity between Office apps still happening on our customers. 

Microsoft provided us the following workaround/fix (see below screenshot) for the SSO issues regarding the AAD Broker plug-in but we are seeing that the policy is not being applied. Do you guys have the same issue?

Workaround/Fix for SSO Failures

1. Install the October 22, 2024 update (KB5045594): http://support.microsoft.com/en-us/topic/october-22-2024-kb5045594-os-build-19045-5073-preview-f307a4b0-f62d-4c28-9062-44207aea55c3
2. Reboot the machine.
3. Open Group Policy Manager as administrator

4. Navigate to User Configuration > Windows Settings > Scripts (Logon/Logoff) > Logon

    5. Click on PowerShell Scripts > Add

 6. Type a script name such as “AAD Broker plug-in fix” and on the Script Parameters section add the following command line “Add-AppxPackage -Register -Path "C:\Windows\SystemApps\Microsoft.AAD.BrokerPlugincw5n1h2txyewy\AppxManifest.xml" -DisableDevelopmentMode”

Click Ok.

7. Select Run Windows PowerShell scripts first and then Apply:

8. Reboot the machine and ensure the policy is active for all users.

After doing these steps all users should get the fix applied at logon and the issues described on the previously indicated documentation should seize. If you detect a user that experiences the issue, first ensure that the logon script is being applied, if it isn’t, enforce the logon script to the user and ask them to sign out and sign in.