@abbailey
I added some nodes to help with this in Camber v4.0.0. The new Polyline.PruneDuplicateVertices node should help a lot for your task. I tested in with your file from here and it worked great. I had to adjust the tolerance just slightly from the default of 0.001, but after that then the Object.Geometry node was able to import all of the Polylines successfully.
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