Client Side Media Uploader Not Working

Hi, When uploading images from the frontend of the site, then editing them in the backend example – croping them, the cropped image is not generated on the server. However when I upload the image via the CMS it then edit it, it works 100%…

Here is my code for the upload functionality, is there a setting and or param that I am missing?

if(isset($_FILES['file']['name'])){

    $upload_overrides = array( 'test_form' => FALSE );

    require $_SERVER['DOCUMENT_ROOT'] . "/wp-admin/includes/file.php";
	require $_SERVER['DOCUMENT_ROOT'] . "/wp-admin/includes/image.php";

    $file_array = array(
	    'name' 		=> $_FILES['file']['name'],
	    'type'		=> $_FILES['file']['type'],
	    'tmp_name'	=> $_FILES['file']['tmp_name'],
	    'error'		=> $_FILES['file']['error'],
	    'size'		=> $_FILES['file']['size']
    );

    if ( !empty( $file_array['name'] ) ) {

	    $uploaded_file = wp_handle_upload( $file_array, $upload_overrides );
	    $wp_filetype = wp_check_filetype( basename( $uploaded_file['file'] ), NULL );

	    $wp_upload_dir = wp_upload_dir();

	    // set up the array of arguments for "wp_insert_post();"

        $attachment = array(

		    'guid' => $wp_upload_dir['url'] . '/' . basename( $uploaded_file['file'] ),
		    'post_mime_type' => $wp_filetype['type'],
		    'post_title' => preg_replace('/\.[^.]+$/', '', basename($uploaded_file['file'])),
		    'post_content' => '',
		    'post_status' => 'inherit'

	    );

	    $attachment_id = wp_insert_attachment( $attachment, $wp_upload_dir['subdir'] .'/'. $file_array['name'] ,2);

	    // generate the attachment metadata
        print_r($uploaded_file);
	    $attach_data = wp_generate_attachment_metadata( $attachment_id, $uploaded_file['file'] );
        wp_update_attachment_metadata( $attachment_id,  $attach_data );

    }
}