[rules-users] Optaplanner - Issue with real-time, chained and shadow variables

Hi everybody I am using optaplanner in real-time style. My application domain is similar to the "Vehicle Routing" example ( http://docs.jboss.org/drools/release/6.0.0.CR5/optaplanner-docs/html_sing...). I mean, I am using chained variables and shadow variables. I have a problem while trying to remove a fact (an entity), via a ProblemFactChange: java.lang.IllegalArgumentException: The entity instance (...) was never added to this ScoreDirector. Usually the cause is that that specific instance was not in your Solution's entities. The fact removing that I made is like: solver.addProblemFactChange(new ProblemFactChange() { @Override public void doChange(ScoreDirector scoreDirector) { ... scoreDirector.beforeEntityRemoved(toRemove); workingSolution.getCustomerList().remove(toRemove); scoreDirector.afterEntityRemoved(toRemove); } }); I think the problem is there. Do you know what I'm doing wrong? I have attached a test case based on the "Vehicle Routing". To run it, just put that file into the optaplanner-distribution-6.0.0.CR5/examples/sources/src/test/java/org/optaplanner/examples/vehiclerouting/app/ directory. <http://drools.46999.n3.nabble.com/file/n4017760/serverlog.zip>I'd appreciate any ideas on how to resolve this. Best regards, Juan Ignacio Barisich