No motion detection through glass pane
I have indoor camera installed indoor that looks outside through a glass window. The motion detection doesn't work. I tested the camera within the room and motion detection works fine but when it is facing outside through the window glass, it will not detect any motion outside. Live feed works fine and image is pretty clear. Does detection rely on infrared or image processing? I ask because I have to turn off night vision (if you do not turn it off, IR reflection from glass makes the live feed very washed out). I have set shutter to be open in all modes and sensitivity to be high.