Exception in thread "JavaFX Application Thread" java.lang.NullPointerException
        at com.sun.glass.ui.Screen.notifySettingsChanged(Unknown Source)
        at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
        at com.sun.glass.ui.win.WinApplication.access$300(Unknown Source)
        at com.sun.glass.ui.win.WinApplication$3$1.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)

Happened when I connected via Remote Desktop to a computer that was already running my JavaFX app .
The app wouldn't paint at all and I couldn't coerce it to refresh in any way (resizing the window, interacting with controls that I couldn't see, etc.)