Quiz Feedback Master not working as expected

This is how Storyline works:

• Slide Master Layouts can be applied to the base of a slide. Objects on the base always appears below objects on a layer. 
• Feedback Master Layouts can be applied to layers above the base. Objects on layers always appear above objects on the base.
• The Correct, Incorrect, Try Again, and Review features in graded-question slides put that info in the corresponding layer, which appears above the question on the base. 

It's not clear to me what is going wrong for you, because "when the feedback displays it is on top of the slide - like a layer" is how it is supposed to work and is what is shown in the QuizMaker tutorial.

Since you're working in Storyline, I suggest you refer to these articles about using Slide and Feedback Masters: 

• Storyline 360: Using Slide Masters | Articulate - Community 
• Storyline 360: Using Feedback Masters | Articulate - Community 

From looking at your pictures, I'm wondering if you have an opaque white background on your feedback layer. Edit your feedback background to make it 100% transparent and see if that's closer to the behaviour you expected.

FionaC : Posting the picture of what's happening clarifies the issue.

As HoneyTurner said, it looks like the layer might have a solid background, which would cover the entire base. In such a case, the fix is to make the layer's background transparent. 

It's also possible that the Slide Layer Properties are set to hide everything on the base. 

For more details, here's a post about base visibility: Can't see the base from a layer? Or is it just dimmed? Is that what you want? Here's how to control base visibility... | Articulate - Community 

Thank you, both! 

I changed the transparency and it is much closer to the view I was expecting. 

Thanks!