Passing score is 80% but results slide shows fail if not all correct answers are chosen

Hi Heroes,

I am an Articulate noob and have learned a lot from you already. Thank you so much! Now I've encountered a problem that I can't seem to find a solution to though. 

I have a freeform pick many quiz and a linked results slide. There are 9 options to choose from 6 are correct. The passing score is 80%. However, when previewing the scene, I keep getting the result "fail" if I do not choose all correct options. I.e. it doesn't accept anything but a 100% correct answer. I've tried adjusting the passing score to 60% and lots of other stuff... To no avail.

I'm attaching some screenshots. 

Any clues are greatly appreciated. 

Thanks,
Karin