The fire particles from a furnace when something is cooking are supposed to be in the front of the block. However, the fire particles are in the back of the furnace, and no particles show up at the front.

Steps to Reproduce:
1. Start cooking something in a furnace. Make sure that the furnace is exposed on at least the front and back to be able to observe this bug.
2. Observe the that the fire particles appear in the back of the furnace, not the front.

Update:
Duplicate

Update:

This bug only occurs when the furnace is facing west (the front of the furnace facing where the sun sets).