Tree structure incorrect though the XML data is valid

Suite and Optimus Suite 5
#1
<?xml version="1.0" encoding="UTF-8"?>

This is my xml to load the tree. But the content for the last user is out of the parent node though there is no error in the structure of the xml.
I have attached a screen shot of the tree.

#2

Hello,

please check that there are not duplicate ids in xml.