Menu referencing system in WP template

There is a section on the left hand side of the menu’s page where you can say which menu goes in which section of your template. However when i select a menu to insert it does not insert it and i have to hardcode the reference. I.E
<?php wp_nav_menu( array(‘menu’ => ‘Footer Navigation Two’ )); ?>

however if i set menu title “TEST MENU” into the footer navigation two selectable on the left hand side it does not insert the menu and its options, i have to change the Footer Navigation Two section in the code above to ‘TEST MENU’

Is there something wrong with my WP template or is this an issue with wp?