Vuforia integration disappear in the v4.0 version of the application. Due to changes into the API the AR view only works if user disable device internet connection. I decided to eliminate Vuforia integration from the main application. Now, application needs only permission to access to the external storage, after delete several permissions that needs Vuforia to work.
Apologizes for the inconvenience, we'll try to develop separate app only for AR view.