My furnace will let me put what I want to burn in but I can't take it out. And I can't put coal or wood as my fuel in.

Put the summary of the bug you're having here
Furnace troubles
What I expected to happen was...:
Describe what you thought should happen here

What actually happened was...:
Describe what happened here
I put my iron in and it didn't come out and i couldn't put coal in.

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ... Put food in furnace and try to take it out
3. ...put coal or wood in (does not work all the time.)