Answered my own question. I’'m an idiot. Setting the field to false made it work.
from thread
http://www.jivesoftware.org/forums/thread.jspa?messageID=100477𘡽
Other options for non Active Directory users:[/b]
The first thing you need to know is how users are stored in your LDAP server. If users are stored by their full DN or if they are stored by their user name. If they are stored by their user name only then you need to set the posixEnabled LDAP property to true. By default this property is set to false. I do not know of another LDAP server that stores members in a group by their full DN other than Active Directory. So most likely you will need to set this to true.