I've been propogating some Little Brother Mongomery from leaves trying the method of including a long part of the stem with the leaf. Works great and have about 10 babies growing on one stem. All the babies are the same as mama except for a group of leaves at the end of one stem. They are of the same shape but a very different coloring then the others. This makes no sense to me. First photo is a baby as it should be. Second photo is the baby a very light green.. any idea?