Assemble Model can not find support nodes once I change the material

Grasshopper Karamba3D
1

Hey, I am trying to assemble a joist in I-beam shape from shell components that is made from two different material, specifically the web differs from the flanges.
I have the model running well when all of the materials are the same, but once I change the material from the flanges, the assembly model component “cannot find the the node at where support index 0,1,2… is attached”.
This is weird because I am picking the support points from the UV points that make up the shells, so I’m a bit clueless. Im also unsure if it is even possible to assembly multiple shells like this.

Thanks for the help in advance!
tool_v3.0.gh (76.9 KB)

2

Hi, you need to flatten the inputs, otherwise it might assemble multiple models and you see dashed lines as an output from the “AssembleModel”

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image1604×659 92.2 KB