Factorio Forums

I can craft Stack and Stack filter inserters without having the technology "Stack inserter" researched (but available).

Researched technologies are:

• Automation
• Automation 2
• Electronics
• Advanced Electronics
• Circuit Network
• Logistics
• Logistics 2
• Optics
• Turrets
• Stone walls
• Gates
• Engine
• Battery
• Landfill
• Steel processing
• Advanced material processing
• Advanced material processing 2
• Electric energy accumulators
• Electric energy distribution
• Railway
• Automated rail transportation
• Toolbelt
• Oil processing
• Fluid handling
• Advanced oil processing
• Sulfur processing
• Plastics
• Military
• Military 2
• Armor crafting
• Armor crafting 2

Unfortunately I don't remember when they became available, so some of these were researched after it was possible to craft them.

Are you using any mods? Please upload the save file in the broken state.

No mods, and here's the save. Apologies for sending this so late.

Do you have any way to reproduce it? Without knowing how it got that way the only thing(s) I can think of are a custom scenario, loading a save previously created/edited, editing the "base" mod to unlock things through different research or random RAM bit flips.

I think I've figured it out. I created this world when achievements came out, and it's possible it was before the update that added a research just for stack inserters. Since I was doing a clean run to get the achievement I didn't try to use mods.

EDIT: I went to check, the world was created on 30/6/2016.

Wizard Marcos wrote:I think I've figured it out. I created this world when achievements came out, and it's possible it was before the update that added a research just for stack inserters. Since I was doing a clean run to get the achievement I didn't try to use mods.

EDIT: I went to check, the world was created on 30/6/2016.

That would do it.