I am currently using TB Mega Menu on D7 to configure my main menu. One of the main menu item is accessible to both anon & authenticated users.I would like to have a block attached to this item as a drop down but it should be accessible only by certain roles - not all authenticated users. I have enabled block visibility restrictions for this block by the user roles I want. But I am still able to view this block as part of the menu as an anon user. How do I restrict this?