ofxControlPanel and simpleFileLister problem...

So I’m using ofxControlPanel in conjunction with simpleFileLister (in an ofxControlPanel file lister) and am running into some issues. I add it to my gui, add a listener (ofAddListener) and have a method to handle the resulting events. Yet, when I select things in my file lister, no events fire. Furthermore, if I test if the file lister is selected (using the selected boolean) it claims that it is selected when I select it, yet attempting to get the selected name or file path results in a null value being spat out. What am I missing here?