I'm trying to breed trees. I've waited at least 48 hours of gameplay and still haven't found a single mutated leaf.... There are a few more hives behind me in this photo. Most of the hives contain cultivated bees. My system replaces the princesses and drones automatically. And I don't think the picture shows it but the apiaries do have direct view of the sky (I broke out some tree leaves at the very beginning). What am I doing wrong?