In my ECAS, status changed to Application Received from In Process last week. Called IRCC today, they told they dont have the authorization form (where my wife authorized me to access her information on behalf of her) in the system. But gave me the option to add my wife on conference call and get verbal authorization from her. After that, the agent advised my wife to hang up and proceeded with giving me information about her application.
Later, the agent informed me that even though the status changed to 'Application Received', the application is still in Canada and has not been assigned to any VO yet. She said she is not aware of why the status changed, but told that it could be because it will be assigned soon. But, its already one week since the status changed.
Sharing here, jfi in case it helps anyone.