Custom title set on quick edit

Thanks to bcworkz on wordpress.org (https://wordpress.org/support/topic/custom-title-set-on-quick-edit/#post-8631035) writing :

I can’t be 100% sure, but I think it’s because the custom field data is not sent in $_POST with quick edit, so the title ends up being set as an empty field.
I think what you need to do is add else code for each custom field involved with the title where when the $_POST data is missing, attempt to get the data from post meta, and if that does not exist, set the title fragment to some default value.
Totally optional, but you might look into using the “pre_post_update” action instead of “post_updated” to alter the title. The main advantage is it saves extra queries to save post data because you alter data before it is saved so the post does not need to be saved again.>

So I added the else statement for each title field.
If anyone is trying to achieve the same thing, here is my new working code:

function kida_post_updated_func( $post_id ) {
if ( wp_is_post_revision( $post_id ) || get_post_type($post_id) != 'plot_detail')return;
 remove_action( 'post_updated', 'kida_post_updated_func' );
$given = get_post_meta($id, 'wpcf-given', true);
    $givenslug = "given";
$nickname = get_post_meta($id, 'wpcf-nickname', true);
    $nicknameslug = "nickname";
$middle = get_post_meta($id, 'wpcf-middle', true);
$middleslug ="middle";
$maiden = get_post_meta($id, 'wpcf-maiden-name', true);
$maidenslug ="maiden-name";
$family = get_post_meta($id, 'wpcf-family', true);
$familyslug = "family";

if(isset($_POST['wpcf'][$givenslug]) && !empty($_POST['wpcf'][$givenslug])){
    $a = $_POST['wpcf'][$givenslug]; 
}
else {
global $post;
    if( empty( $post ) )
    $post = get_post($post_id);
    if( get_post_type($post_id) !== 'plot_detail' )
    return $post_id;
       if( function_exists('types_render_field') ) {
         $a = types_render_field( 'given', array('raw'=>'true') );
   }
 }
if(isset($_POST['wpcf'][$nicknameslug]) && !empty($_POST['wpcf'][$nicknameslug])){
    $b = $_POST['wpcf'][$nicknameslug]; 
    $bb = '"';
}
else {
   global $post;
   if( empty( $post ) )
   $post = get_post($post_id);
   if( get_post_type($post_id) !== 'plot_detail' )
       return $post_id;
   if( function_exists('types_render_field') ) {
    $bx = types_render_field( 'nickname', array('raw'=>'true') );
    if(!empty($bx)) {
       $b = $bx;
       $bb = '"';
    }
   }
}
if(isset($_POST['wpcf'][$middleslug]) && !empty($_POST['wpcf'][$middleslug])){
    $c = $_POST['wpcf'][$middleslug]; 
}
else {
   global $post;
   if( empty( $post ) )
   $post = get_post($post_id);
   if( get_post_type($post_id) !== 'plot_detail' )
    return $post_id;
   if( function_exists('types_render_field') ) {
    $c = types_render_field( 'middle', array('raw'=>'true') );
   }
}       
if(isset($_POST['wpcf'][$maidenslug]) && !empty($_POST['wpcf'][$maidenslug])){
    $d = $_POST['wpcf'][$maidenslug]; 
    $dd = '(';
    $de=")";
}
else {
   global $post;
   if( empty( $post ) )
   $post = get_post($post_id);
   if( get_post_type($post_id) !== 'plot_detail' )
   return $post_id;
   if( function_exists('types_render_field') ) {
    $dx = types_render_field( 'maiden-name', array('raw'=>'true') );
    if(!empty($dx)) {
       $d = $dx;
       $dd = '(';
       $de=")";
    }
    }
}
if(isset($_POST['wpcf'][$familyslug]) && !empty($_POST['wpcf'][$familyslug])){
    $e = $_POST['wpcf'][$familyslug]; 
}
else {
   global $post;
   if( empty( $post ) )
   $post = get_post($post_id);
   if( get_post_type($post_id) !== 'plot_detail' )
    return $post_id;
   if( function_exists('types_render_field') ) {
    $e = types_render_field( 'family', array('raw'=>'true') );
   }
}

$v = $a . ' ' . $bb . $b . $bb . ' ' . $c . ' ' .  $dd . $d . $de . ' ' . $e;


$my_args = array(
    'ID' => $post_id,
    'post_title' => $v,
    'post_name' => sanitize_title($v),
);

// update the post, which calls save_post again
$res = wp_update_post( $my_args, true );
add_action( 'post_updated', 'kida_post_updated_func' );
}
add_action( 'post_updated', 'kida_post_updated_func' );`