I was trying to use submenus as prescribed by Marc Brocato in this thread: https://www.sencha.com/forum/showthread.php?344787 . While the thread says it fixed, in my use of the example it is not. I'm running ExtReact 6.5.2 with yeomen installation, windows 10 on a surface laptop. See attached screenshot to show my results. The contrainer has the following markup contained.