For instance I have a 2-3 Splitter as a Blue Belt Blueprint Blue Belt BP.png When I click the starting end of the underground belt whit a Yellow one, it will auto-place the other end: Blue Belt.png However, when doing the same for the same blueprint but with Yellow Belts, the other end doesn't auto-...

When you shoot a rock for stone, it will drop the same sprite. Also when you "kill" a rock that contains coal, it will not drop.