Wall edges references empty list?

Sometimes when I use a script to auto dimension the exterior side of a wall type, the Wall Edges References node from the Geniusloci package is giving a list with null values… Anyone knows what could be causing this?

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Edit: I found out it’s happening with stacked wall types… Any way to find the exterior side of a stacked wall with Dynamo?

Hi @selim.celem,

If you have at least one basic wall in your list, the Wall Edges References node should return the references of the basic wall.

In this case, use the Get Wall Member node :