Part of adaptive family instance lost when creating Tunnel model

Geometry
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1

Hello everyone，I created a tunnel model using dynamo+adaptive family .
I will try to introduce my workflow in few steps, and my confusion at last.
step.1 I created one two point adaptive family , this family inlude one adaptive point and two reference points,as you can see.

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and each one of the segments are generated form these two profiles as you can see from the picture blow.
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step.2 I created the Tunnel using this dynamo script.20191225-1.dyn (108.9 KB) IB.rfa (828 KB)
MY CONFUSION.
As you can see from the screenshot blow, some of the segments are lost while some of the segment generated.
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The center line I used for the tunnel modeling is nurbscurve created in Revit.
I really don’t know why this happened, the profiles generated but the segment lost.

2

Think I would need the nurbs curve to reproduce the issue.

3

Hi @jacob.small , the nurbscurve I used is just an ordinary nurbscurve , this issue is very easy to recur :slightly_smiling_face:

4

Hi @17621047566, I also get the same issue, have you find any solution?. if any, Please suggest.