[rules-users] Re: Action firing twice

3rd tryI have a list of Items that I am inserting into working memory.Here is the rule that is failing:rule "Cannot select X if both Y and Z are not selected"when     Item(code == "X")     (or (not Item(code == "Y"))           (not Item(code == "Z")))then     System.out.println("Error: You cannot select X unless both Y and Z are selected");endThis rule works correctly when X and Y are there, and when X and Z are there.However, when both Y and Z are missing, the error prints twice.Can anyone tell me what I am doing wrong.Thanks a lotVithal