https://clips.twitch.tv/ObservantHumbleMageMikeHogu

When the output alloy is present in the crucible along with a valid mixture of the same alloy, draining the last ingot or so of metal oscillates between unknown alloy and the alloy expected.

This behaves somewhat similarly to adding just a few units of some other metal into an otherwise valid alloy except epsilon is obeyed in this second case.

Attention to detail is important!

1. Add valid ingredients for bismuth bronze alloy to crucible
2. Add more than an insignificant amount of bismuth bronze.
3. Drain out ingots of alloy.
4. The last bit of metal will sometimes be read as unknown alloy.

Meta Info

• TFC Version: build 144

Steps to reproduce:

1. Add 1 ingot of bronze to 100 units of tin and 900 units of copper in a crucible
2. Drain bronze out until alloy becomes Unknown Alloy
   
3. Drain 1 unit of Unknown Alloy out
   
4. Drain more bronze until Unknown Alloy again
5. Repeat 3 and 4 until crucible is empty