Hello.  I've been having a problem with assigning food points.  Recently, I noticed that I was running low on animal carbohydrates.  Since I don't care very much about the intelligence stat, I rearranged all my pets' food points so that they all had zero stars assigned to animal carbohydrates.  So I was surprised to discover today that my animals had eaten 144 points of animal carbohydrates (all of my remaining supplies) and I had spent 119 silver on food.  On closer inspection of the daily food report, I discovered that my animals had not eaten a single point of plant carbohydrates.  I then checked all my animals' pages, and found that I had assigned 263 stars worth of plant carbohydrates.  144+119=263.  I have now switched each pet's animal and plant carbohydrate stars, and am waiting to see what happens tomorrow.

Update:  Assigning animal carbohydrates on my pets' pages did, in fact, result in them eating plant carbohydrates.

Thank you for reporting! It took some time, but we managed to figure out why this happened. The bug must be gone now. Sorry for the inconvenience!