Mac OS X Server: Workspace Manager Menus Disappear

In Mac OS X Server's Workspace Manager I have noticed that after quitting an application, all of the menus disappear except for the upper right-most process menu. How can I make the menus reappear?
Simply clicking on an element within the Workspace Manager (such as the desktop or a window) will return the menus to their normal state.
Published Date: Feb 20, 2012