Status: Fixed in 0.1.7
Reported: Oct 19, 2026
Fixed: Oct 19, 2026, 9:56 AM (Eastern) in 0.1.7
Seen in version: 0.1.6 and earlier
What happened: A Miner could only be upgraded when there were open slopes beside it.
What was expected: A Miner should upgrade wherever it stands.
Steps: Build a Miner on a hilltop with no open slopes around it and try to upgrade it.
How often: Every time.
What was fixed: A Miner can be upgraded 3 times (up to level 4) on any hilltop; each upgrade adds a conveyor belt on another side of the hill.