readdcode

MaterialGraphProject/Assets/GraphFramework/SerializableGraph/Editor/Drawing/Drawer/NodeDrawer.cs

                 name = "controls", // for USS&Flexbox
                 pickingMode = PickingMode.Ignore,
             };
-            //AddChild(m_ControlsContainer);
+            AddChild(m_ControlsContainer);
 
             m_currentControlDrawData = new List<ControlDrawData>();
         }