From https://bugzilla.redhat.com/show_bug.cgi?id=1013294:

"After having problem with Jboss Openshifts 4.0 not being able to connect to openshift servers resolved by a recent update, now I have three applications on a domain. Am able to manage two of those application but one always returns "Unable to create SSH session for application 'main' Auth fail" whenever I try to manage the application with JBoss openshift tools for Zend Studio. After investigating for a while I noticed that the UUID for the two applications are was able to access were the same as the username in the git url. However for the one that am unable to access the UUID is different from the username in the git url. Management with rhc and other ssh tools work but I need the JBoss tools because they make work easier. Is there any way I can update the UUID in JBoss Openshift tools."