Poly Sphere Low Poly Issue

[WAS]

I thought because the poly sphere is based on subdivision of the surface, it may be handy for more angular rock like thingies, but when I do a lower poly surface, the seams and stuff all seem very noticeable. Is this normal?

[Dune]

I think it has its limitations in displacing without glitches, but the squares look a bit odd.

[Kadri]

There was i think an old case-bug with GI and-or GIS. Still around as it looks.
I made a search but could not find it.

Found it: https://planetside.co.uk/forums/index.php/topic,20209.msg200003.html#msg200003
This is a good thread related to objects in general for Terragen.