By not working do you mean that they are not responding to clicks? or that they are empty? For empty sub-menus, please see https://bugs.launchpad.net/bugs/594228
For items not responding to clicks, that's a unity implementation issue then.
By not working do you mean that they are not responding to clicks? or that they are empty? /bugs.launchpad .net/bugs/ 594228
For empty sub-menus, please see https:/
For items not responding to clicks, that's a unity implementation issue then.