[1.0.0] Vanilla - furnace stalled and won't smelt - w/save

[Mike5000]

1.0.0 with no mods. I needed a couple of steel plates in a hurry. I have steel researched so I put down a stone furnace, opened it, right-clicked two iron plates into it, then shift-clicked a stack of coal into it.

It does not smelt! (I find it hard to believe myself.)

I tried saving, quitting, and resuming - no change.

This is 1.0.0 (build 54889, linux64, steam).

Save game attached.

You can also start from the attached save game, craft another stone furnace, place it, open it, right click two iron plates into it, shift click a stack of coal into it, and the new furnace will also not smelt.

However if I put the iron in after the coal it works.

[Klonan]

You need 5 iron plates for 1 piece of steel

[Mike5000]

Apologies.