After I have started new survival world in 1.16.220.52, I found out that coal or charcoal only smelting one single item instead of smelting 8 items as I thought it might be a glitch so I restarted and again the same happened. I would like to know if this is a bug or a glitch in the beta version 1.16.220.52 Beta version of MCPE ( Bedrock).
After further testing in my single player survival world I found out that the coal or Charcoal would smelt same item as the previous one. e.g. if I use sticks as a fuel in a furnace before using coal the coal would smelt the same items as sticks would do if I use wood or planks the same is also getting applied on coal. As it is a survival world I'm trying to find others bugs that may occur in survival play.