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)
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