Hi, alpheratz-jb! Try setting a name of the only transition in the start state. Regards, Saviola View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3981975#3981975 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3981975