I’ve just noticed my camera is only detecting motion when a person is moving away from the camera 
it doesn’t capture when someone is walking directly towards.
anyone else have this issue ???
This is common. ALL IR cameras detect motion best when the subject is moving ACROSS the FOV…not directly at it or moving away. If you can…move the camera so that it has a FOV that is at a larger angle or closer to where the motion moves across the FOV. Good luck.