The application I'm having the issue with is the Notification Area Applet itself. The Network Manager icon, among others, is displayed within this applet. I've attached a screenshot with a red box around the "handle" on the Notification Area applet, where, if you right-click, the menu does not come up, but if you double-right-click, the menu does come up.
The application I'm having the issue with is the Notification Area Applet itself. The Network Manager icon, among others, is displayed within this applet. I've attached a screenshot with a red box around the "handle" on the Notification Area applet, where, if you right-click, the menu does not come up, but if you double-right-click, the menu does come up.