There is no record of the manufacturer, the output function is omitted - components/com_virtuemart/views/productdetails/tmpl/default.php
<?php
// Manufacturer of the Product
if (VmConfig::get('show_manufacturers', 1) && !empty($this->product->virtuemart_manufacturer_id)) {
$this->loadTemplate('manufacturer');
}
?>
correct way is
echo $this->loadTemplate('manufacturer');
VM202 - the same, been waiting for next release :-\
oh intersting
thx fixed