I noticed that I'm unable to make shrimp-fried rice because my mantis shrimp will not fry the fried rice I gave it in the furnace (there is fuel in the furnace). I think this is because of an issue with FastFurnace replacing the vanilla furnace, making the mantis shrimp unable to detect that there is a furnace since it most likely only detects vanilla furnaces, thus not allowing it to fry my rice.

I'm playing on the modpack Valhelsia 3 - 3.4.8 where both FastFurnace and Alex's Mobs are used.