Koha,
The elements in my model are working very well, when I test the model it works recognizing the pill just right, the problem is when you bring another pill that is not in the model, instead of returning an error or empty, it return any of the elements in my model, and thus give you a false answer.
You can try with the hard cheese model that comes by default, just scan your skin ant it will tell you that you are cheese at x% fat.