"Diagram properties" is empty, if you'll go to Business Central you'll get error -------------------------------------------------------------------------------- Key: DROOLS-3949 URL: https://issues.jboss.org/browse/DROOLS-3949 Project: Drools Issue Type: Bug Components: DMN Editor Affects Versions: 7.21.0.Final Reporter: Yevgeniy Fomin Assignee: Michael Anstis Priority: Blocker Labels: Stunner, drools-tools Attachments: Error.jpeg, Screenshot from 2019-04-29 15-22-18.png The "Diagram properties" is empty in any step of creation diagram(see attach), also you will receive an error after attempting to click on "Business Central" after using "Diagram properties". Please notice the issue affects also Business Processes. If user create new business process, the diagram properties panel is always empty.