jQuery Grid Plugin - jqGrid

Hello,

I use "Add tree node" -> "Adjacency Model".

To add a new item in the tree jqGrid I do not reference the parent id so I can save the new item in the DB

I updated with the latest version 4.1.1 but it changes nothing.

Here's the back next to click on a line of the tree and then adding an item:

I use the example of this page:
http://www.trirand.com/jqgridw.....ency_model

Is there a trick that I missed?

merci