I just noticed that after i updated to 1.13.0.2 beta. I tried to smelt stone to smooth stone and nothing happend
Linked issues
Attachments
Comments

Thank you for your report!
However, this issue has been closed as a Duplicate of MCPE-47907.
Please add a vote and any new information to the main ticket, which will be updated accordingly.
If you have not, you might like to make use of the search feature before making a new ticket, as it's likely that the issue has been reported already.
Quick Links:📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki
No modo sobrevivência não estou conseguindo fundir a pedra pra obter a pedra lisa, mas no criativo sim , entretanto, se fundir o pedregulho mesmo no criativo, e tentar fundir novamente não se consegue obter a pedra Lisa.