Description of bug
The pack adds randomised rotated concrete powder, although this is already done in the vanilla game.
Solution
Remove rotated concrete powder from the pack.
This isn't a bug. In vanilla, concrete powder is only rotated on the y axis, while this pack rotates it along all axis so it doesn't have a grid pattern when on a vertical wall as well.
Description of bug The pack adds randomised rotated concrete powder, although this is already done in the vanilla game. Solution Remove rotated concrete powder from the pack.
_Credit to MarvoloRiddle for pointing this out