GraphStreamViewer is not working with breaks

Hi,

I simply added
> new GraphStreamViewer(problem, bestSolution).labelWith(Label.ID).setRenderDelay(200).display();

to BreakExample and I got the following exception:

Exception in thread “main” org.graphstream.graph.ElementNotFoundException: Cannot create edge 1.2[4_[x=15.0][y=13.0]->myFirstBreak_[x=15.0][y=7.0]]. Node ‘myFirstBreak_[x=15.0][y=7.0]’ does not exist.
at org.graphstream.graph.implementations.AbstractGraph.addEdge(AbstractGraph.java:872)
at org.graphstream.graph.implementations.AbstractGraph.addEdge(AbstractGraph.java:352)
at com.graphhopper.jsprit.analysis.toolbox.GraphStreamViewer.renderRoute(GraphStreamViewer.java:589)
at com.graphhopper.jsprit.analysis.toolbox.GraphStreamViewer.render(GraphStreamViewer.java:398)
at com.graphhopper.jsprit.analysis.toolbox.GraphStreamViewer.display(GraphStreamViewer.java:328)
at com.graphhopper.jsprit.examples.BreakExample.main(BreakExample.java:108)

Hi, Thanks. This should not be. Would you mind to open a new issue on jsprit`s issue tracker? Thanks a lot.
Best, Stefan