Blocks from custom update handles

I have a block inside a custom update handle found in local.xml:

<full_width_with_nav>
        <reference name="content">
            <block type="core/template" name="products_nav" as="products_nav" before="-" template="page/html/products-nav.phtml" />
        </reference>
</full_width_with_nav>

The block does work correctly directly in Magento, I’ve cleared all cache/reindex data, I am referencing my theme package under settings, and Mage.php can be found.

When I call the block

<?php the_block('products_nav'); ?>

I get “Sorry that block cannot be found”

If I put the block under the <default> node of the same local.xml file, the block is found.

Thanks for any help.

https://www.ads-software.com/plugins/magento-wordpress-integration/