I have 3 classes in my working memory: - Item - Container - History I first create an object Item i (which is in the container c): Container c1=new Container(?c1?); Item i=new Item(c1); session.insert(i); When I insert the item in the working memory a rule is fired and creates a new History object which is directly asserted in the working memory: History h1=new History(i); insert(h1); Now we have this situation: History.getItem().getContainer().getName() gives ?c1?. After that, in my application, I change the container of the Item i: i.setContainer(new Container(?c2?)); (auto update in the working memory via a bean, it works, the debugger indicates that the item was updated) Now we should this situation: History.getItem().getContainer().getName() gives ?c2?. But in the LHS of the rules, this call still gives ?c1? and in a RHS it is ok, it gives ?c1? What am I doing wrong? Why is the History object not updated in the LHS? Thanks for your help Fabrice