[0.14.21] Stack inserters unlocked before research.

[Wizard Marcos]

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.

[Rseding91]

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

[Wizard Marcos]

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

[Rseding91]

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.

[Wizard Marcos]

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.

[Rseding91]

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.