Meshes mix failure

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! (21.2 KB)

use unify mesh normals:

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