grasshopper vesion 7.00053 uv voronoi error

hello.

I've been working on a project ( Thanks to BLAK and others)

1.

when I applied uv voronoi on the surface in grasshopper version 0.6. , it worked properly.

but then I upgraded it to 0.7. version, it's outcome came like this.

Is it a bug? or did i do something wrong?

one more question!

2.

when I bake point, and surface and set them to connect to uv voronoi, it works

but if i connect directly it doesn't work.

I don't know why it happens to be like that.

(I was like this both vesion 0.6 and 0.7)

Does any one have some clue for those issues?

Thank you