Version: 0.13.21.1

Expected behavior

• Miner busily mining and building tunnels

Actual behaviour

• Miner can run out of cobblestone, and stand around indefinitely.

Steps to reproduce the problem

1. Have a miner that decides to build tunnels out into the air over a lava lake
2. Miner builds cobblestone walls for all the nodes, until he runs out of cobblestone
3. Miner sits and stares at the partially completed node, only taking a break to sleep.
4. ... Profit

I believe I have the same problem, but my miner is requesting dirt. I wasn't even sure the miner used dirt.

Yeah, mine was requesting dirt too, the dirt request is the right size for what should be a cobble request.

I also reported it here: as this is exactly what was happening to me: #5339

Update ... seems like just Miner levels 2 did it. I upgraded mine to level 3 and she's digging nodes fine.

I'm guessing that moved her to a different level of the mine? I'd guess that broke her out of the stuck condition, though if you sent her back to the original level she might get stuck again.

I also have this issue with miner requesting dirt instead of cobblestone. My guess is it's because schematic specifies a solid block, in this case the builder would use dirt while the miner cobblestone, but it seams this difference is not considered when requesting items and in both cases the dirt is being requested.