The "motion" triggering the camera was erratic. It wasn't a person walking. It was the camera itself. It was glitching, rotating left, then snapping right, as if it were being jostled or hit.
This is a specific file or directory name used primarily by Panasonic network cameras.
How to use the on-screen PTZ (Pan-Tilt-Zoom) controls that often appear alongside the viewer frame. Why Do These Cameras Exist Publicly?