After few weeks that the back-end was working fine tonight, while the user edit the page back-end and save, all the data beside the 1’st element had been disappear. Sure enough the data are fine in the front-end

this is my meta-box file

<?php
/*
Title: Sections
Post Type: page
Template: catalog
priority: high
order: 20
*/

function pl_color() {
global $lo_options;

$colors = maybe_unserialize($lo_options[‘colors’]);
$ret[‘none’] = ‘Choose Color’;
foreach ($colors as $color) {
$ret[$color[‘name’]] = $color[‘name’];
}
return $ret;
}

function pl_products () {
$posts = get_posts(array(
‘order’ => ‘ASC’,
‘orderby’ => ‘title’,
‘meta_key’ => ‘product ID’,
‘post_type’ => ‘page’,
‘post_status’ => ‘publish’,
‘posts_per_page’ => -1,
‘meta_query’ => array(
‘relation’ => ‘OR’,
array(‘key’ => ‘product ID’, ‘compare’ => ‘EXISTS’, ),
array(‘key’ => ‘img_dir’, ‘compare’ => ‘EXISTS’, )
)));
$ret[‘none’] = ‘Choose product’;
foreach ($posts as $p) {
$ret[$p->ID] = $p->post_title;
}
return $ret;
}

$products = pl_products();
$color = pl_color ();

piklist(‘field’, array(
‘type’ => ‘group’
,’field’ => ‘section’
,’label’ => ‘Section’
,’add_more’ => true
,’fields’ => array(
array(
‘type’ => ‘text’
,’field’ => ‘name’
,’label’ => ‘Section title’
,’columns’ => 6
)
,array(
‘type’ => ‘textarea’
,’field’ => ‘mobile’
,’label’ => ‘Mobile description’
,’columns’ => 6
)
,array(
‘type’ => ‘group’
,’label’ => ‘Product’
,’field’ => ‘products’
,’template’ => ‘field’
,’add_more’ => true
,’conditions’ => array(
array(
‘field’ => ‘action’
,’value’ => ‘list’
)
)

,’fields’ => array(

array(
‘type’ => ‘select’
,’field’ => ‘product’
,’label’ => ‘Product’
,’columns’ => 3
,’choices’ => $products
)
,array(
‘type’ => ‘select’
,’field’ => ‘color’
,’label’ => ‘Color’
,’columns’ => 3
,’choices’ => $color
)

)))));