Results slide variables missing

I was just working on someone's course that had two results slides - one active as part of the course and the other in a separate scene with unused quiz questions. They were having a problem with the score not showing properly in the active results slide. When I deleted the second (inactive) one it removed the ResultsPass and ResultsScore variables and gave me the same result you are seeing on the active results slide - no idea why. I restored the inactive slide and went back and deleted the triggers that referred to the variables from the inactive slide and everything worked fine. So if you have had more than one results slide in the course and have been messing with one of them, that may be your problem. If not, well . . .