template_redirect not working, apparently for no reason

Well I made a plugin that uses template_redirect for the custom post type squeezepages and it works all fine and dandy, but I copied the exact same code, put it in a new plugin, activated it (with a few minor adjustments, for example I changed the custom post type to newpages and the template_redirect is taking the template from a different source) and suddenly it doesn’t work?

I can have both plugins active at the same time, the squeeze pages work, the new pages don’t. It puzzles me so much. I even disabled the squeeze pages plugin and it still doesn’t work. I’ve tried all combinations (there’s only a couple) and still nothing. It seems like it’s not working for NO reason. I’ve been staring at the same code for 2 hours and I’m not able to figure it out.

Here’s the code for my custom post types:

add_action( 'init', 'ifp_create_post_type' );
function ifp_create_post_type() {
register_post_type( 'newpages',
    array(
        'labels' => array(
            'name' => __( 'New Pages' ),
            'singular_name' => __( 'New Page' )
        ),
    'public' => true,
    'menu_position' => 5,
    'rewrite' => true,
    'rewrite' => array('slug' => 'newpage', 'with_front' => FALSE),
    'supports' => array('title', 'editor', 'excerpt', 'trackbacks', 'custom-fields', 'comments', 'revisions', 'thumbnail', 'author', 'page-attributes')
    )
);
}

And my template_redirect:

function ifp_default_template() {
    if(get_post_type() == 'newpages') : global $wp_query, $post, $posts;
    include(PLUGINDIR . '/newpage/themes/default.php');
    exit; endif;
}
add_action('template_redirect', 'ifp_default_template');