Some missing info here, but are you saying your v2 or pan triggers on your outdoor motion sensor light, but your wco does not? The motion trigger on the V2 and pans is by detecting pixel change, such as a light turning on. The WCO detects using a PIR sensor, much like your motion sensor light I suppose. Another user explained this to a post of yours in another thread.
Can you explain which camera doesn’t detect at night?