Meshes mix failure

Grasshopper
,
1

Hi,Everyone
I try to make a Voronoi structure without featheredge.So i delete some small plane in original and scaled geometry.
Then i try to use the deleted plane which in scaled geometry but it may have something wrong(the arrow marked). Here is my gh file.Please help me.
Thanks!
1021.gh (21.2 KB)

1021
1021735×401 153 KB

2

use unify mesh normals:

image
image693×539 72.4 KB

3

Thanks.But increase the number of Voronoi lattice, some plane may still created failure.