Peculiar - I can reproduce it on Windows XP 32bit, 3 different Windows 7, Windows 8.1 and Windows 10 64bit for both 32bit and 64bit TC.
I also tested with accounts that has not been configured in any way - here Asterisk and Defaulr beep is the same sound, but I still hear a second Asterisk sound when i close the dialog.
Just to make sure that we are testing the same - I am talking about the em_NavigateToSameNameTrgItem solution, not the Autorun solution.