2D Patterning Process

I have 2 questions this week.

  1. How to get rid of the red color and why there is red color?
  2. Why I can’t connect the “attractive points” and “evaluate surface” to the “pull point” together? When I try to connect them, Rhino will crash… But I succeeded to connect them before I add “tween through curves”.
Rendered view
Ghost view
The Second Question