Storing cloneable group with datetime field programmatically

Hi,

I've tried the solution described in https://support.metabox.io/topic/replace-array-value-in-group/ but it doesnt work for me.

My field configuration:

$meta_boxes[] = [        
        'id'         => 'provider_management',
        'fields'     => [
            [
                'id'                => 'provider_management_group',
                'type'              => 'group',
                'clone'             => true,
                'sort_clone'        => true,
                'fields'            => [
                    [
                        'id'        => 'provider_management_group_date',
                        'type'      => 'datetime',
                        'timestamp' => true,
                    ],
                    [
                        'id'      => 'provider_management_group_note',
                        'type'    => 'textarea',
                    ],
                ],
            ],
        ],
    ];

Storing values I have tried:

$values = [];
$values[] = [ 'provider_management_group_date' => [ 'timestamp' => time(), 'formatted' => date('Y-m-d H:i', time()) ], 'provider_management_group_note' => $admin_note ];

or just:

$values = [];
$values[] = [ 'provider_management_group_date' => time(), 'provider_management_group_note' => $admin_note ];

And tried saving it with:

rwmb_set_meta( $object_id, 'provider_management_group', $values );

or

update_post_meta( $object_id, 'provider_management_group', $values );

But it doesn't save, or it doesnt show afterwards in the edit post area.

Any idea what I am doing wrong here?