Retry Quiz_Results Slide Not Working

Hello guys,

I have a weird problem with this feature. I've looked through the various posts to see if anyone else encountered it but I couldn't find any so hopefully somebody can help me out.

I put a Retry button on the Results Slide and it is "technically" working as it should - It brings me back to the quiz and I can take it..etc...but when I get to the Results Slide, it "locks" up. Basically it's just a blank screen and when your moue hovers over the screen, it churns and looks like it's trying to get the results for the retry attempt but it just stays there thinking. 

See attached image.

I initially thought that maybe this is just an issue with Previewing it but I can confirm that the problem carries over after uploading in LMS.

Any ideas on how to fix this?

Donna