If you still receive the following error:
Reference Factory Class Location URLs: <null>
means that the name space is not constructed correctly in certain servers in a cell
such that the server name is used as a cluster member and for some other server in the cell.
This causing a name not found exception. You should make sure that server names used in clusters are unique within the cell.
The problem should be fixed by applying fixpack1. Otherwise, try to change the server name manually.
Be aware that if you map the DefaultApplication to the newly created server or deploy the DefaultApplication on the newly created server, the application fails to start if you do not select to use the existing server as a template when creating the new application server.