Factorio Forums

When looking to build a train stop, I'm being told that I am able to build -1 our of 16 iron rods in order to build this train stop. In the top left hand corner of the screenshot, however, you can see that I currently have 1 iron rod already built meaning that it should be showing 1/16

Aware that the save game is using out of date mods, but have just updated the mods list and this is still occurring!



To reproduce, load the save, open the inventory and hover over the Train Stop in the build menu. It will show -1/16 instead of 1/16.

This one is odd,

It is related to having the iron-ingot, and only 1 iron rod

But the small chassis itself needs the iron-rod, so i think it is getting confused because of that

What's the smallest amount of ingredients? 1/32? 1/65536?

Fixed in Version: 0.17.80

Thanks for the report.
I changed some things related to how recipes are calculated, so let me know if you notice any other weird things.