It seems that stockpiles get distorted a bit (graphically) at certain angles. I’d assume it’s just getting meshed with the ground, instead of being a teensy bit above it. I believe a similar thing is happening with trees, when they spawn close to each other, mesh and then slightly become fuzzy at the points at which they connect. Here are two examples:
Yeah, I was thinking about this as being the cause, but I just couldn’t find the words! I was thinking of “z-scores”, but that’s a stats term, which wouldn’t really apply here. Damn you SPSS!!
Low priority for sure, but aesthetic things like this are still worth a note