Factorio Forums

Steps to reproduce:

• Place down a furnace without fuel/power
• Put some ingredients in the furnace
• Take them out again

The furnace still shows the icon of the recipe for that you put the ingredients in it. It will still not update if you put the ingredient of a different recipe in it (note that you can't shift-click the ingredients in the furnace but can place them in the ingredient slot manually). It will only update as soon as it has fuel/power. The recipe will be cleared however if the furnace finishes a crafting cycle. Even when there are ingredients left (an insufficient amount).

This is working as intended.

Ok, but then the statuses in the two images are wrong. In the first it should say "No fuel" and in the second "Item ingredient shortage".