The water dripping from under your Incubator pan or corner of the frame is due to low room temperature and high internal Incubator temperature and humidity. When cold temperature meets warm temperature it "Rains," thus your incubator somehow needs to get the water drops out. It always takes that water drops out from the corners of the metal frame. This does not mean that anything is wrong with your Incubator or it's not sealing properly and it is absolutely not a reason to lose a chick or egg. Increase your room temperature or put something under the Incubator while setting eggs if this happens.