Rise 360: Quiz Continue button leads to blank screen

I am having this issue as well. SCORM 1.2 packages. Chrome and Edge browsers. SuccessFactors LMS. Tracking: Track using course completion = 100%. Reporting: Passed/Incomplete (which always works for us). 

My quiz is lesson 6 out of 7 lessons. Unlimited tries.

• When testing on our LMS testing platform. I go through the quiz once and fail or pass (doesn't matter, it turns out), then retry a second time and pass.
• When I select the Continue button, I get a blank screen.
• I have to close the course by selecting the top-right X icon. When I relaunch, I'm on the Lesson 7 page.
• There is no issue when I go through the quiz once and pass the first time.

I've attached images to show what I am seeing with various test scenarios on Edge and Chrome.

I cannot release this course in this state and I do not think it's caused by any kind of unreliable internet issue because I can reproduce it every time. Hoping the Articulate team will take a look at it and help me understand the root cause. (I have submitted a support case.)