I just started two new plants from clippings off the main plant. Both plants are doing well except there is a clear, sticky substance on some of the leaves. New leaves also have some brown, dot marks on them which I am thinking based on one of your articles is about watering issues and these leaves should recover? I can’t determine where the sticky substance is coming from. It almost appears that the leaves are sweating this substance. Any ideas what it could be and what to do about it?