query_posts() won't sort properly

Trying to modify a theme with a child theme. There’s something fishy with a query_posts(). I have these arguments which are defaults:

Array
(
    [post_type] => post
    [post_status] => publish
    [category_name] =>
    [posts_per_page] => 4
    [offset] => 0
    [order] => DESC
)

i’ve tried with “orderby” => ‘date’ as well. If i change the post_type to ‘products’, for examle, i get the products but not in a date order. the sorting function just does not work no matter what i do.

I’ve tried this as well:

$blog_posts = query_posts($args);
foreach($blog_posts as $bp)
{
    echo '<pre>';
    print_r($bp->post_date);
    echo '</pre>';
}

and tried all different kind of variations – the sorting does just not work. Going nuts here. Everything excetp sorting is working. Any tips of plugins which messes with my query, or known bugs/problems regarding this?
Or, in this case, something like

query_posts($args);
if(have_posts())
{
    while(have_posts())
    {
        //Reverse this loop?!
    }
}

would work as well.