Great example and solution! However, I noticed a glitch in the implementation. As shown in the screenshot, the cumulative moving aggregation should reset for each quarter as per requested in the question. To fix this, the quarter should be added to the Group Loop Start node, IMHO.
That’s correct! As a matter of fact, we did not solve the challenge precisely as intended. But we thought that publishing our solution corrected of issues, after being developed on stage during the Finale, would be “cheating”.
The solution has just been expanded out of components, so that it can be viewed even roughly by the picture outline on the Community Hub.