Using a Web Objects for Quiz questions

Hey gang - I did a bunch of searching in this community, but have not yet figured out how to get grading to work on our LMS (SumTotal) when using a Web Object to 'host' a final graded knowledge check/quiz. We have been using the iSpring QuizMaker for years and want to insert quizzes from that tool published as LMS objects.

I can insert them into SL 360, but when the quiz is complete and the results slide in the WO shows the learner their pass / fail and score, moving to the next slide or closing out the lesson does not seem to send any scoring data to the LMS.

I watched Dave's Anderson's excellent (as usual) discussion below on Web Objects but nothing like this was address:

Using Web Objects in Storyline | Articulate - Community

Does anyone have an idea how to 'wire up' a web object that runs a quiz, and get the results of that into SL?

I might just have to resort to rebuilding the quizzes but was hoping to leverage content we already created and had reviewed.