0x87DD0005 Can't Login to XBox Live

Completely stuck...

• I've imported the unity GDK package https://github.com/microsoft/gdk-unity-package/releases
• Installed GDK https://github.com/microsoft/GDK/releases/tag/June_2021_Update_4
  
• Reserved my app
• Setup XBox live services for desktop only
• Granted myself access to the test environment
• Published the test environment
• Associated my unity project with the store
• Switched to the sandbox ( Shows an error, but when I launch apps, It shows I'm in the sandbox )
• Launched Apps and shows I'm in the sandbox
  
• Set Windows to developer mode in settings

Can't login... screenshots attached..

 

Got an email saying that my app has access to my account. Says unverified. Attached screenshot

 

This Microsoft GDK package file seems completely useless. Doesn't work with Creators program.

https://github.com/microsoft/gdk-unity-package/issues/70#issuecomment-1029121049

I'm just using Unity UWP instead.