Views 2 Attachments are not displayed for authenticated users

I have created many views using Views 2 and Table Wizard. The views each consist of a parent display (page) and two views attachments. As "user 1", I preview the views when I navigate to the URLs that were assigned—using links, menu items that were created, or by typing the locations into browser—the result is perfectly displayed as I created it: attachment #1, then a header and attachment #2, and the parent view then its footer. However, an authenticated user is unable to see the attachment views, so all they get is a parent view (with a pager) and the footer… no attachments are displayed to them. After much seeking, I cannot figure out the cause. Below is a sample of the Views export. I appreciate any feedback, advice, or encouragement that anyone can offer, thanks.

<?php
$handler = $view->new_display('page', 'employee123', 'page_2');
$handler->override_option('filters', array(
  'employee_id' => array(
    'operator' => '=',
    'value' => 'employee123',
    'group' => '0',
    'exposed' => FALSE,
    'expose' => array(
      'operator' => 'employee_id_op',
      'label' => 'employee_report_summaries: employee_id',
      'use_operator' => 0,
      'identifier' => 'employee_id',
      'optional' => 1,
      'remember' => 0,
    ),
    'case' => 0,
    'id' => 'employee_id',
    'table' => 'employee_report_summaries',
    'field' => 'employee_id',
    'relationship' => 'none',
    'override' => array(
      'button' => 'Use default',
    ),
  ),
  'plan_year_end' => array(
    'operator' => '!=',
    'value' => '12/31/1901',
    'group' => '0',
    'exposed' => FALSE,
    'expose' => array(
      'operator' => FALSE,
      'label' => '',
    ),
    'case' => 1,
    'id' => 'plan_year_end',
    'table' => 'employee_report_summaries',
    'field' => 'plan_year_end',
    'override' => array(
      'button' => 'Use default',
    ),
    'relationship' => 'none',
  ),
));
$handler->override_option('access', array(
  'type' => 'role',
  'role' => array(
    '490' => 490,
  ),
));
$handler->override_option('header', '');
$handler->override_option('header_format', '1');
$handler->override_option('path', 'report_summary/fund/employee123');
$handler->override_option('menu', array(
  'type' => 'normal',
  'title' => 'Report Summaries',
  'description' => 'Report Summaries',
  'weight' => '0',
  'name' => 'secondary-links',
));
$handler->override_option('tab_options', array(
  'type' => 'none',
  'title' => '',
  'description' => '',
  'weight' => 0,
  'name' => 'navigation',
));
$handler = $view->new_display('attachment', 'employee123 Attach', 'attachment_1');
$handler->override_option('fields', array(
  'employee_id' => array(
    'label' => 'Last 4 Lastname',
    'alter' => array(
      'alter_text' => 0,
      'text' => '',
      'make_link' => 0,
      'path' => '',
      'link_class' => '',
      'alt' => '',
      'prefix' => '',
      'suffix' => '',
      'target' => '',
      'help' => '',
      'trim' => 0,
      'max_length' => '',
      'word_boundary' => 1,
      'ellipsis' => 1,
      'html' => 0,
      'strip_tags' => 0,
    ),
    'empty' => '',
    'hide_empty' => 0,
    'empty_zero' => 0,
    'exclude' => 1,
    'id' => 'employee_id',
    'table' => 'employees',
    'field' => 'employee_id',
    'override' => array(
      'button' => 'Use default',
    ),
    'relationship' => 'none',
  ),
  'firstname' => array(
    'label' => '',
    'alter' => array(
      'alter_text' => 0,
      'text' => '',
      'make_link' => 0,
      'path' => '',
      'link_class' => '',
      'alt' => '',
      'prefix' => '',
      'suffix' => '',
      'target' => '',
      'help' => '',
      'trim' => 0,
      'max_length' => '',
      'word_boundary' => 1,
      'ellipsis' => 1,
      'html' => 0,
      'strip_tags' => 0,
    ),
    'empty' => '',
    'hide_empty' => 1,
    'empty_zero' => 0,
    'exclude' => 0,
    'id' => 'firstname',
    'table' => 'employees',
    'field' => 'firstname',
    'override' => array(
      'button' => 'Use default',
    ),
    'relationship' => 'none',
  ),
  'middle' => array(
    'label' => '',
    'alter' => array(
      'alter_text' => 0,
      'text' => '',
      'make_link' => 0,
      'path' => '',
      'link_class' => '',
      'alt' => '',
      'prefix' => '',
      'suffix' => '',
      'target' => '',
      'help' => '',
      'trim' => 0,
      'max_length' => '',
      'word_boundary' => 1,
      'ellipsis' => 1,
      'html' => 0,
      'strip_tags' => 0,
    ),
    'empty' => '',
    'hide_empty' => 1,
    'empty_zero' => 0,
    'exclude' => 0,
    'id' => 'middle',
    'table' => 'employees',
    'field' => 'middle',
    'override' => array(
      'button' => 'Use default',
    ),
    'relationship' => 'none',
  ),
  'lastname' => array(
    'label' => '',
    'alter' => array(
      'alter_text' => 0,
      'text' => '',
      'make_link' => 0,
      'path' => '',
      'link_class' => '',
      'alt' => '',
      'prefix' => '',
      'suffix' => '',
      'target' => '',
      'help' => '',
      'trim' => 0,
      'max_length' => '',
      'word_boundary' => 1,
      'ellipsis' => 1,
      'html' => 0,
      'strip_tags' => 0,
    ),
    'empty' => '',
    'hide_empty' => 0,
    'empty_zero' => 0,
    'exclude' => 0,
    'id' => 'lastname',
    'table' => 'employees',
    'field' => 'lastname',
    'override' => array(
      'button' => 'Use default',
    ),
    'relationship' => 'none',
  ),
  'honor' => array(
    'label' => '',
    'alter' => array(
      'alter_text' => 0,
      'text' => '',
      'make_link' => 0,
      'path' => '',
      'link_class' => '',
      'alt' => '',
      'prefix' => '',
      'suffix' => '',
      'target' => '',
      'help' => '',
      'trim' => 0,
      'max_length' => '',
      'word_boundary' => 1,
      'ellipsis' => 1,
      'html' => 0,
      'strip_tags' => 0,
    ),
    'empty' => '',
    'hide_empty' => 1,
    'empty_zero' => 0,
    'exclude' => 0,
    'id' => 'honor',
    'table' => 'employees',
    'field' => 'honor',
    'override' => array(
      'button' => 'Use default',
    ),
    'relationship' => 'none',
  ),
  'ssn' => array(
    'label' => 'SSN (Last 4)',
    'alter' => array(
      'alter_text' => 0,
      'text' => '',
      'make_link' => 0,
      'path' => '',
      'link_class' => '',
      'alt' => '',
      'prefix' => '',
      'suffix' => '',
      'target' => '',
      'help' => '',
      'trim' => 0,
      'max_length' => '',
      'word_boundary' => 1,
      'ellipsis' => 1,
      'html' => 0,
      'strip_tags' => 0,
    ),
    'empty' => '',
    'hide_empty' => 0,
    'empty_zero' => 0,
    'exclude' => 0,
    'id' => 'ssn',
    'table' => 'employees',
    'field' => 'ssn',
    'override' => array(
      'button' => 'Use default',
    ),
    'relationship' => 'none',
  ),
  'name' => array(
    'label' => '',
    'alter' => array(
      'alter_text' => 0,
      'text' => '',
      'make_link' => 0,
      'path' => '',
      'link_class' => '',
      'alt' => '',
      'prefix' => '',
      'suffix' => '',
      'target' => '',
      'help' => '',
      'trim' => 0,
      'max_length' => '',
      'word_boundary' => 1,
      'ellipsis' => 1,
      'html' => 0,
      'strip_tags' => 0,
    ),
    'empty' => '',
    'hide_empty' => 0,
    'empty_zero' => 0,
    'exclude' => 0,
    'id' => 'name',
    'table' => 'role',
    'field' => 'name',
    'override' => array(
      'button' => 'Use default',
    ),
    'relationship' => 'none',
  ),
));
$handler->override_option('filters', array(
  'last4lastname_1' => array(
    'operator' => '=',
    'value' => 'employee123',
    'group' => '0',
    'exposed' => FALSE,
    'expose' => array(
      'operator' => FALSE,
      'label' => '',
    ),
    'case' => 0,
    'id' => 'last4lastname_1',
    'table' => 'employees',
    'field' => 'employee_id',
    'override' => array(
      'button' => 'Use default',
    ),
    'relationship' => 'none',
  ),
));
$handler->override_option('access', array(
  'type' => 'role',
  'role' => array(
    '490' => 490,
  ),
));
$handler->override_option('header', '');
$handler->override_option('footer', '');
$handler->override_option('items_per_page', 1);
$handler->override_option('link_display', 'page_2');
$handler->override_option('style_plugin', 'default');
$handler->override_option('style_options', array(
  'grouping' => '',
));
$handler->override_option('attachment_position', 'before');
$handler->override_option('inherit_arguments', 1);
$handler->override_option('inherit_exposed_filters', 0);
$handler->override_option('inherit_pager', FALSE);
$handler->override_option('render_pager', TRUE);
$handler->override_option('displays', array(
  'page_2' => 'page_2',
  'default' => 0,
  'page_1' => 0,
  'page_3' => 0,
));
?>