Compatability with Magic Fields 2

Hey Guy's
I was wondering if any of you knew if membership is compatible with Magic Fields 2 [http://wordpress.org/extend/plugins/magic-fields-2/]?
I currently am using "members" [http://wordpress.org/extend/plugins/members/] as my membership and role manager.
When using them together I'm getting one hell of a confusing error:
Warning: Attempt to assign property of non-object in /home/spsp/public_html/wp-content/plugins/members/includes/functions.php on line 22
that shows up any time I call
Code from Magic Fields 2
$members = get_group('exercise_instructions');
Here's the code for context:
Code from Magic Fields 2

<?php
      // second way to get the fields

      // get_group will return an array of all the groups and the group's fields
      // the parameter for this function is the group's name
      $members = get_group('exercise_instructions');
      // to see how the array is formed you can use pr($members);
      // the way the array is formed is
      // [group index][field name][field index]
      // The image fields in the array have one more level where the letter "original" and "thumb" which will show
      // the original or the thumbnail image
      foreach($members as $member){
        echo $member['exercise_instructions_single_instruction'][1]."<br />";
        echo $member['exercise_instructions'][1]."<br />";
        echo $member['exercise_instructions_exercise_reps'][1]."<br />";
        echo $member['exercise_instructions_exercise_instruction'][1]."<br />";
        echo "<img src='".$member['exercise_instructions_demo_image'][1]['thumb']."'><br /><br />";
      }
    ?>
<?php the_content( __( 'Continue reading ?', 'twentyten' ) ); ?>
<?php wp_link_pages(array('before' => '<p><strong>Pages:</strong>

Now the strange part is that if i move the_content up it displays without error. It's only after the
get_group('exercise_instructions') that there is an issue.
the get_group function looks like this.
Code from Magic Fields 2

function get_group( $group_name , $post_id = NULL ){
  global $post,$wpdb; 

  if(!$post_id){ $post_id = $post->ID; }

  $sql = sprintf(
    "SELECT m.field_name, c.type, w.meta_value, m.group_count, m.field_count, c.options ".
    "FROM %s m " .
    "JOIN %s c ON m.field_name = c.name " .
    "JOIN %s g ON c.custom_group_id = g.id  " .
    "JOIN %s w ON w.meta_id = m.meta_id " .
    "WHERE m.post_id = %d AND g.name = '%s' AND w.meta_value <> '' ".
    "ORDER BY m.group_count,c.display_order, m.field_count ASC",
    MF_TABLE_POST_META,
    MF_TABLE_CUSTOM_FIELDS,
    MF_TABLE_CUSTOM_GROUPS,
    $wpdb->postmeta,
    $post_id,
    $group_name
  );

  $fields = $wpdb->get_results($sql,ARRAY_A);

  $result = array();
  foreach($fields as $field){
    $type    = $field['type'];
    $options = $field['options'];
    $value   = $field['meta_value'];
    $group_index = $field['group_count'];
    $field_index = $field['field_count'];
    $field_name = $field['field_name'];

    if(is_serialized($value)){
      $value= unserialize( $value );
    }

    $result[$group_index][$field_name][$field_index] = _processed_value($value, $type, $options,1);
  }
  return $result;
}

The error...
Warning: Attempt to assign property of non-object in /home/spsp/public_html/wp-content/plugins/members/includes/functions.php on line 22
is coming from:
$members->settings = get_option( 'members_settings' );
in...
Code from Members Plugin

/**
 * Gets a setting from from the plugin settings in the database.
 *
 * @since 0.2.0
 */
function members_get_setting( $option = '' ) {
	global $members;

	if ( !$option )
		return false;

	if ( !isset( $members->settings ) )

		$members->settings = get_option( 'members_settings' );

	if ( !is_array( $members->settings ) || empty( $members->settings[$option] ) )
		return false;

	return $members->settings[$option];
}

Now I'm contemplating switching to the membership plugin based on this error. if i can't figure out a fix for this issue.
My question is will I have a similar issue with Magic Fields & your plugin that takes care of role management and members content?