Custom node add formular in block with multi domains

Hi,

I want to add the node/add form of a custom content type to a block, that is then displayed on a page.
I use the following code for that:

global $user;
  $node = array(
   'uid' => $user->uid,
   'name' => $user->name,
   'type' => 'loehde_gb_entry',
  );


module_load_include('inc', 'node', 'node.pages');
$form = drupal_get_form('loehde_gb_entry_node_form',$node);
 
if ($_GET['q'] != 'node/add/loehde_gb_entry') {

print($form);

}

The form is displayed correctly and it seems to submit correctly but no new node is created.
I am using this on a multi domain site with the domain_access modul.

On a single site it worked for me but after switching to multi domain it stopped working.

Any hints what went wrong?

Thanx