Issue description
Hi,
it's probably just an annoyance, but if you load the game, all previously selected machine-types are reset to tier one and therefore, if you click on "Smelting", then "Silicon", the Arc Furnace does not show up as an option. You have to got to the "All" tab, select the arc furnace, then it also shows up in the "Silicon" tab.
Reproduction steps
See issue description and screenshots.
Game version and build number
v0.7.1d
Operating system
Windows
Attachments
