Feedback Slides Not Showing

Hiya, can anyone see why the feedback slides in my project (attached) don't seem to be showing on slides two and three? Slide 1 (Multiple Choice question) shows them as expected, but slides 2 and 3 (Drag and Drop and Multiple Answer) don't seem to show. 

Am I missing something obvious? Any help would be much appreciated. 

Thanks! 

Fraser Webster