While working on adding T4, I found a few bugs that I’m fixing right now.
Various fixes :
Conveyor speed upgrades were not giving the correct bonus amount. They now correctly provide 10% speed (instead of 1%).
The upgrade that creates ingots two at a time now takes the visible ingot parameter into account (the second ingot will not always appear at 100%, but depending on the machine’s counting).
On some slower PCs, ingots created by the presses could give a slightly lower value than intended. This is now fixed.
The empty inventory icon for the fusion furnaces has been fixed and will now be properly centered.