Thanks for your file Marissa. I can see the curves being generated now but not in the way they were shown in the video. I uploaded a couple of images showing the intended result and the actual result I'm getting on my end. Changing the directions of the original three curves will impact how the new curves are generated but still could not get the intended result. Also tried to change the order of the three curves on the network which did not affect anything. Looks like the points are still not collated properly. I am wondering if there's a workaround to achieve similar result without having to use the collate.
I was watching one of the Webinar on University Vectorworks about Algorithmic Design with Marionette. Link below https://university.vectorworks.net/mod/scorm/player.php?a=65¤torg=articulate_rise&scoid=130 The first exercise is about creating tapered extrude with three curves. Every step has been followed but it seems the Collate node is not working and the curves won't be generated. I have attached a screenshot and the working file (VW2019 SP3) I am scratching my head and I just can't see what I'm doing incorrectly. Any help will be much appreciated. Marionette.vwx