Polyline tool - close Boolean not working with new rhino update

Hi Everyone,

I have been having a weird problem - I have developed a small script to create an open spiral polyline. The script works fine on my computer, and I can implement multiple shapes.

The problem occurs when I share this script, and my colleague’s polyline is closed - even if they adjust the boolean toggle between true and false. The only difference we could find was I am yet to update my rhino, and theirs are all up to date with the latest version. See images below

Has anyone experienced this? or have any insight into what might be happening?

Any advice will be greatly appreciated. Thanks in advanced
Polyline Example.gh (9.2 KB)

Hi Charlotte -

I see that you are using a Contour component in that Grasshopper definition.
A bug crept into one of the Rhino versions that would cause duplicate curves to be generated. This has since been fixed in “7.x”, which, at this point, is 7.24. The affected versions appear to be 7.22 and release candidates of 7.23.

For more information on that bug, see:
RH-70299 Grasshopper: Contour component did not work properly
-wim