Page updates appear in Preview but not live version?

I have made some changes to a blog page and excluded some categories. However, whenever I view the blog online the excluded posts still appear. But when I got to the blog page and click 'preview' the excluded categories do not appear, as I wanted.

I have cleared my browsers cache but this does nothing. There are no cache plugins in use.

Does anyone know what's going on?

Test Site: http://crankit.com.au/~dentalwe/blog/

function genesis_do_loop() {

    if ( is_page_template( 'page_blog.php' ) ) {
        $include = genesis_get_option( 'blog_cat' );
        $exclude = genesis_get_option( 'blog_cat_exclude' ) ? explode( ',', str_replace( ' ', '', genesis_get_option( 'blog_cat_exclude' ) ) ) : '';
        $paged   = get_query_var( 'paged' ) ? get_query_var( 'paged' ) : 1;

        //* Easter Egg
        $query_args = wp_parse_args(
            genesis_get_custom_field( 'query_args' ),
            array(
                'cat'              = $include,
                'category__not_in' = $exclude,
                'showposts'        = genesis_get_option( 'blog_cat_num' ),
                'paged'            = $paged,
            )
        );

        genesis_custom_loop( $query_args );
    } else {
        genesis_standard_loop();
    }

}