They are not static. They thrust up through the ground like shards of glass, sometimes in one area, sometimes all around you. Not solid objects, they clip through anything they come in contact with. Artifacts.
Has no effect on gameplay, just ugly and distracting. Only appears when loading at the launch pad or runway.
Does NOT appear when landed anywhere on Kerbin or other bodies.
Appeared on first boot after installing the current (new) version of scatter.