Problems with group and text_date

Hi!

I’m having problems with fields text_date and group

I have this code in cmb2_mb.php:

<?php
	$mb_group = $mb -> add_field(array(
		'id'          => 'mb_group',
		'type'        => 'group',
		'repeatable'  => false,
		'options'     => array(
			'group_title'   => 'Group:',
			'sortable'      => false,
		),
	));

	$mb -> add_group_field($mb_group, array(
		'id'   => 'mb_group_text_date',
		'type' => 'text_date',
		'name' => 'Text date:',
	));

	$mb -> add_group_field($mb_group, array(
		'id'   => 'mb_group_text',
		'type' => 'text',
		'name' => 'Text:',
	));
?>

Then this code in my single.php:

<?php
	$mb_group = get_post_meta(get_the_ID(), 'mb_group', true);
	foreach ((array) $mb_group as $key => $entry) {

		if (isset($entry['text_date'])) {
			$text_date = esc_html($entry['text_date']);
		}

		if (isset($entry['mb_group_text'])) {
			$mb_group_text = esc_html($entry['mb_group_text']);
		}
	}
?>

But the field text_date is not printed.
Other fields (text, radio_inline, select and text_time), if they are printed

Can you help with this?

Thanks