in the Activiti Designer when I changet "Called Element" property of a CallActivity, the save button is still grey. When I select another BPMN element a return back to the CallActivity, my change to "Called Element" was discarded. Also when the save button is enabled when changing the "Called Element", I cannot save the change. The only way how to save my change is to click somewhere else in the property dialog, so the Called Element textbox looses focus and then save the diagram.
Thanks for checking the issue.
Eclipse Kepler for J2EE, embedded Glassfish 4.0-b72