My surfaces in Grasshopper are black

I am working on a model in Grasshopper and it all went black. I do not seem to be able to correct the problem.

Thank you
Fran

ORIGINAL TRIANGLE.3dm (3.2 MB)
ORIGINAL TRIANGLE.gh (44.9 KB)

Is there any heavy computation in the script, if yes try opening the grasshopper file on a new rhino document and see if that fixes the problem

in the Grasshopper Menu:
Display → Preview setting → Set a color other then black
(drag and drop one of the given materials)

if the camera-position of your rhino-File does not fit:
bake the geometry, zoom selected, sellast, delete

this is how your file looks after setting the preview to pink…

hope this helps ?

kind regards -tom

Thanks so much. I was wondering it was not black and then it turned black. It was a wood color. Wondering why. it did that. Also when saving Rhino/ Grasshopper files do you save them together? After saving them, when I go to open Rhino it says the file is corrupted. Not sure what I am doing wrong.

Thanks agin
Fran