We've made a big change to Motion Detection.
In our latest firmware version for Wyze Cam v2 and Pan, we've upgraded the vision algorithm for motion detection.
With the change, we now recommend using the Motion Tagging feature to generate the green box, which them identifies the motion detection zones. The green box indicates the largest rectangle of the moving objects.
Motion detection is then triggered when there is overlap between your active Detection Zone and the green box. If there's no overlap, the green box will not display. However, if there is any overlap, even if it is very small, the vision algorithm considers that as a trigger of motion detection.