4.0-652 doesn't have native support for the adapter. So when you're using the latest Dev builds put the switch in WiiU mode, but when you're using 4.0-652 put it in PC mode.
Note that when you're doing manual configuration, you have to manually assign the buttons to the proper slots. So on the GCPad interface press the button for A, then press A on your controller. Then do the same thing with all the other buttons and control sticks.
Note that when you're doing manual configuration, you have to manually assign the buttons to the proper slots. So on the GCPad interface press the button for A, then press A on your controller. Then do the same thing with all the other buttons and control sticks.