Can't get lists block to display

I can't seem to find a way to get the lkist block to display, and allow creation of a list. My field is as follows:

$flags = array();
// Exported flag: "Flag list template test2".
$flags['fl_template_test2'] = array (
  'entity_type' => 'node',
  'title' => 'Flag list template test2',
  'global' => '0',
  'types' => 
  array (
    0 => 'article',
    1 => 'page',
  ),
  'flag_short' => 'Add to your [flag_lists:title] [flag_lists:term]',
  'flag_long' => 'Add this post to your [flag_lists:title] [flag_lists:term]',
  'flag_message' => 'This post has been added to your [flag_lists:title] [flag_lists:term]',
  'unflag_short' => 'Remove this from your [flag_lists:title] [flag_lists:term]',
  'unflag_long' => 'Remove this post from your [flag_lists:title] [flag_lists:term]',
  'unflag_message' => 'This post has been removed from your [flag_lists:title] [flag_lists:term]',
  'unflag_denied_text' => '',
  'link_type' => 'fl_template',
  'weight' => 0,
  'show_in_links' => 
  array (
    'full' => 0,
    'teaser' => 0,
    'rss' => 0,
    'search_index' => 0,
    'search_result' => 0,
    'token' => 0,
  ),
  'show_as_field' => false,
  'show_on_form' => 0,
  'access_author' => '',
  'show_contextual_link' => false,
  'i18n' => 0,
  'api_version' => 3,
);
return $flags;

If I visit /user/1/flag/lists, I see an empty page. Not really sure what to try next, so any help appreciated!

Edit: after trying a number of things, the list block appeared after I added a title on the block page.