Not working on custom post types

I am having problems using this on a custom post type.

Here is the function that creates my custom post type:

function create_service_type() {
	register_post_type( 'service',
            array(
                'labels' => array(
                'name' => _x('Services', 'post type general name'),
                'singular_name' => _x('Service', 'post type singular name'),
                'add_new' => _x('Add New', 'book'),
                'add_new_item' => __('Add New Service'),
                'edit_item' => __('Edit Service'),
                'new_item' => __('New Service'),
                'all_items' => __('All Services'),
                'view_item' => __('View Service'),
                'search_items' => __('Search Services'),
                'not_found' =>  __('No services found'),
                'not_found_in_trash' => __('No services found in Trash'),
                'parent_item_colon' => '',
                'menu_name' => __('Services')
		),
		'public' => true,
		'has_archive' => false,
                'supports' => array( 'title', 'editor', 'thumbnail', 'excerpt' ),
                'capability_type' => 'page',
		)
	);
}
add_action( 'init', 'create_service_type' );

That works fine

And then here is the code for both of the additional featured images that I have set up.

if( class_exists( 'kdMultipleFeaturedImages' ) ) {

    $args1 = array(
    'id' => 'title-image',
    'post_type' => 'page',      // Set this to post or page
    'labels' => array(
        'name'      => 'Title Image',
        'set'       => 'Set title image',
        'remove'    => 'Remove title image',
         'use'       => 'Use as title image',
         )
    );

   new kdMultipleFeaturedImages( $args1 );
}

if( class_exists( 'kdMultipleFeaturedImages' ) ) {

    $args2 = array(
    'id' => 'services-title-image',
    'post_type' => 'service',      // Set this to post or page
    'labels' => array(
        'name'      => 'Title Image',
        'set'       => 'Set title image',
        'remove'    => 'Remove title image',
         'use'       => 'Use as title image',
         )
    );

   new kdMultipleFeaturedImages( $args2 );
}

I have an image size set for them:

if ( function_exists( 'add_image_size' ) ) {
	add_image_size( 'title_image', 345, 125, true ); //(cropped)
}

And then, when calling the image on a page type it works fine. That’s the code I use for that:

<?php kd_mfi_the_featured_image( 'title-image', 'page', 'title_image' ); ?>

Now, the code that doesn’t work – this is what I have on my service custom post:

<?php kd_mfi_the_featured_image( 'services-title-image', 'service', 'title-image' ); ?>

Any ideas on why that doesn’t work?

The site this is on is https://host18.qnop.net/~lisalinc/

Pages where it works, there is an image next to the title, .e.g https://host18.qnop.net/~lisalinc/about/

On the services pages, it doesn’t work, e.g. https://host18.qnop.net/~lisalinc/service/health-wellbeing/

I really hope someone can help.

https://www.ads-software.com/extend/plugins/multiple-featured-images/