When I use lattice chisel to block that exists in that color in planet it turns into black.
For example planet Havran I Igneous rock (color oxide green id:52) turn into black (id:1) in Havran I. Block seem to be placed by player that this happens.
Edit: Video
This bug affects at least these natural blocks: Rocks, Soils, Foliages, Trunks, Sand, Gravel, Ash, Thorns, Mould, Tangle, Growth, Ice and Glacier.