I have observed two distinct situations that cause this (and another similar) behavior. First, if the Breeze is launched from a reflective surface (any bright, white, shiny or glossy floor, like the deck on a boat in sunlight) it will NOT launch. To resolve, put a carpet or rug under the drone and it will be fine. Second, the Breeze may not gain altitude and is very slow to respond to controls. I found this to happen whenever the Drone is launched over HOT pavement (asphalt or concrete, even sand). To resolve launch from a grassy area. I infer both of these issues arise from a confused infrared sensor system.