When opening the example http://www.omg.org/spec/BPMN/2.0/examples/ZIP/Incident%20Management/Incident%20Management(Process%20Engine%20Executable).bpmn the editor shows the following examples, and then does not display the links between the nodes. The similar example (http://www.omg.org/spec/BPMN/2.0/examples/ZIP/Incident%20Management/Incident%20Management(Process%20Engine%20Only).bpmn) has a similar structure, and the links are displayed correctly.
Unresolved reference 'com.camunda.examples.incidentmanagement.IssueReport'. (platform:/resource/OMG_Examples/2010-06-03/Incident%20Management/Incident%20Management(Process%20Engine%20Executable).bpmn2, 295, 78)
Unresolved reference 'com.camunda.examples.incidentmanagement.IssueReport'. (platform:/resource/OMG_Examples/2010-06-03/Incident%20Management/Incident%20Management(Process%20Engine%20Executable).bpmn2, 295, 78)