Not able to smelt granite, andesite, or diorite into smooth stone blocks.

Also not able to switch what type of block is being smelted with the same heat source. For example, I am able to smelt 5 "cobblestone" blocks into "stone" using a bucket of lava, but once this is completed and the 5 "stone" blocks removed from the output, I am unable to smelt "iron ore" (or any other block which is not "cobblestone") in the same furnace until the lava has expired and I have inserted a new heat source.

Blocks that I place in the input of the furnace will also not begin to smelt if there is anything in the output slot, even when the output item would be the same as what is currently in the output slot.

Thank you!