I've sure never seen anything like this. I've been so careful with it even when taking it on our road trips. I make sure nothing brushes against it. After I hose it off, I usually pat it dry gently to get most of the moisture off because our water is hard and can leave white spots. I sure hope it's nothing that will spread.The plant has to be left alone for almost 2 weeks. I have it on the light and the watering, but I didn't hook up the webcam to watch it. Doing that was just too much, with our rush to get ready.