You may want to put the following code
global $wp_query;
var_dump($wp_query->request);
before the
<?php if ( have_posts() ) : ?>
line to check the exact SQL statement. Maybe running it did return only one result.
You may want to put the following code
global $wp_query;
var_dump($wp_query->request);
before the
<?php if ( have_posts() ) : ?>
line to check the exact SQL statement. Maybe running it did return only one result.