How to recalculate mesh grid after using CubeGr tool?

Hello everyone,
I follow this lesson discovering CubeGr tool and found in some cases mesh grid looks broken. Same issue I get if I extend mesh width.

As a result textures looks weird on these meshes.
I believe I need something similar with Zbrush DynoMesh what recalculate the grid.
(Or in here this is an issue with UV map?)
Can someone explain me please how can achieve my goal?

I know this is a long time since your post, but did you resolve this? I’m having the same issue. I need to add one more column of blocks to something and it starts a new polygroup with its own UV coordinates, causing what you’re seeing here. I can’t find a way to join them and “add on” the UVs.