Been playing one of the relatively new experimental versions recently, when I successfully crafted aspic from a single chunk of meat, it requires ‘1 chunk of meat’ and then a large OR that also has ‘1 chunk of meat’ in it, it returned true for all requirements, and also gave me a debug message for not having the ingredients, but still gave me the result. I didn’t have any of the other ingredients in the OR statement.
It’s a fairly minor issue as few recipes (more than one? I don’t even know) have a particular ingredient in two places, but still a bug.