It has displayed an open Notepad window and is waiting for user input just as you'd expect so the script is waiting for human input. Your test script (if you check Task Manager) I'll bet is executing.
If you specify Run whether user is logged on or not (which you want to do) - if you test with your real script that does not interact with the user I think you'll find it works. You are testing with a script that opens Notepad but your real script has no user interaction. I know this is a late post but this is my understanding.