Drupal View filtered with a custom individual data field
Drupal Views need to know about table updates when they are using separate databases.  When you add a custom field, civicrm  creates a new table.  To expose the new entity, you must edit the settings.php file with the new field.  You can just copy/paste from here: https://example.org/civicrm/admin/setting/uf?reset=1 .  Ref: http://wiki.civicrm.org/confluence/display/CRMDOC/Views3+Integration