I reported this is the past but it seems to have been forgotten/lost
I have tracked the pyramidal defects to possibly being noise generated by the random seed.
The sharp edges I have no idea why they are being generated. They sometimes move when the random seed moves but I am not sure that is the key cause.
http://www.smoth.net/files/worldmachine/GRTS_RiverValley_011_source.7z
Taken from the above file