This "bug" prohibits getting the other variants in survival
( you can do this in pc, why not pe)Only producible in survival, as you can't craft/smelt in creative. I view this as a bug because I'm pretty sure the devs forgot to add this as it's a petty feature but they added you can craft mossy cobblestone, saying It supposed to be able to craft all the stone variants

To Reproduce, go in survival, craft stonebrick and go to a furnace and you won't see the option to cook stone brick.
To Reproduce, go in survival, find the necessities of crafting the mossy stonebrick (such as stonebrick, vines) and go to a crafting table and you won't see the option of crafting mossy stonebrick.