No idea if you found your answer yet, but this issue was apparently known
(https://github.com/CleverRaven/Cataclysm-DDA/issues/40771) and fixed in one of the newest builds. Except now (for me) the charcoal isn’t used, but at least it works 
No idea if you found your answer yet, but this issue was apparently known
(https://github.com/CleverRaven/Cataclysm-DDA/issues/40771) and fixed in one of the newest builds. Except now (for me) the charcoal isn’t used, but at least it works