Thx for pointing that out.. I will take a look at a correction for that, the problem
is the object is sliced for creation and the slices arent meeting in the middle it seems.
The correction for this problem is to make the default 3d slice width smaller
in your options. This controls how many slabs make up a 3d object, it too coarse
the effect on a herringbone will be as in your photo, cut the dist to 1/4 of what you have
and I think youll ind the herring bone is fine.