Vehicles only detected one way during the dark.
C720 with Verhicle detection via a preset zone. Zone covers about half the screen. Set up to detect vehicles entering or leaving a drive.
During daylight operations vehicles are detected in either direction. Right to left and Left to right.
During dark operations vehicles are detected ONLY in one direction. Left to Right.
All notification setting on.
Schedule set to always.
Similar camera in a slightly different location but set to "PEOPLE only detect" works normally. All settings similar except for detection type.
I can't see anything in the settings that could cause this. Working one way would tend to indicate settings are correct.