Empty $object_id in rwmb_after_save_post

Hi,
I want to add the stick_post() and unstick_post() functionallity to a custom post type and integrated a custom checkbox field for this.
It's all working fine but the $object_id passed by the hook rwmb_after_save_post (as described in the documentation https://docs.metabox.io/actions/rwmb-after-save-post/) seems to be empty for me.

I have made this relative easy checkbox field to stick and unstick the post:

add_filter( 'rwmb_meta_boxes', function( $meta_boxes ) {
	$prefix = 'stick-post_';

	$meta_boxes[] = [
		'title'		 => __( 'Stick Post', 'cvh-design' ),
		'id'		 => 'stick-posts',
		'post_types' => [
			'know-how'
		],
		'context'	 => 'side',
		'style'		 => 'default',
		'closed'	 => false,
		'fields'	=> [
			[
				'type'		=> 'checkbox',
				'id'		=> $prefix.'stick',
				'desc'		=> _x('Make post sticky', 'backend', 'cvh_design'),
				'columns'	=> 12,
			],
		]
	];

	return $meta_boxes;
});

And to check if the checkbox is ticked when the post is saved I created the following code.
The isset($_POST['stick-post_stick']) works perfectly fine I checkt the value vai a wp_mail action.
But the $object_id is empty when I try to log it into a wp_mail.

What am I missing?

add_action('rwmb_stick-posts_after_save_post', 'set_sticky_status');

function set_sticky_status($object_id) {
	if(isset($_POST['stick-post_stick'])) {
		stick_post($object_id);
	}

	else {
		unstick_post($object_id);
	}
}

Thanks in advance.