         private var _guiModel:GUIModel;
         private var _soloMesh:SoloMesh;
         private var _propertiesView:PropertiesView;
+        private var _firstBuild:Boolean = true;
 
         public function PropertiesViewMediator()
         {

            if (_propertiesView.meshPickerList.selectedIndex != -1)
            {
                _soloMesh.build();
            }
        }



    import recastnavigation.recast.RCConfig;

    import starling.animation.Tween;
    import starling.core.Starling;
    import starling.events.Event;

    public class PropertiesViewMediator
