Results slide not hiding when using more than one Knowledge Check slides

In Cp 13, I can add a question slide and change it to a knowldege check and the results slide automaticly hides when publish which is what I want. However if I add another question slide and change it to a knowledge check, the results slide now shows during publish and I don’t have the option to hide it. Is this a bug, or am I missing something? 

We only do formative questions in elearning so we only want knowledge check questions and don’t want learners to see the results slide since it doesn’t show results unless the question is graded. 

Thanks for any help anyone can provide!