This is not a session nor replicated. This is just local user logging into Online Services.
After the print string says Calling ED_Login, there should be more print strings from the widgets that have events bound to the event dispatcher ED_Login.
I have switched to a Blueprint Interface that is implemented in the root class WBP_Multiplayer in which all multiplayer widgets derive from, and still, I can call the function from the blueprint interface, but only the widget connected to target will fire the event.
Hard to believe I had a good grasp on this 2 years ago, doing complex setups, and now I cant get what i would call a simple setup, to work. 