Light changes shouldn’t affect the actual Waypoints, but they can and do affect the camera’s movement if you have Track Motion enabled because of the way most Wyze Cam models detect motion:
Wyze Cam v3 detects motion by comparing pixels changing between video frames. “Motion” is recorded when large clusters of pixels change over time. This large cluster can mean a small object moving close to the camera, or a big object moving farther away (like a tree blowing in the wind).
I realize that article specifically mentions Cam v3, but I believe it also applies to most other Wyze Cam models (exceptions being things like Cam Outdoor and Battery Cam Pro, which can use things like PIR and/or radar in addition to pixel change analysis). It’s why you have to be cognizant of the lighting conditions and their likelihood to change when you’re using automated features (like Track Motion or Trigger-type Automations based on motion detection events with these cameras, as a change in lighting could cause an unwanted re-initiation of an automated action).
I don’t believe so, and I believe something like that has been proposed as a potential solution to the drift issue.
That’s my understanding, as well, thus the drift.
As @dave27 said (and I mentioned much earlier), having Motion Tagging
enabled just gives your videos the green box overlay that indicates what the camera is interpreting as motion. I like this feature because I feel it provides useful information about how the camera is analyzing the data its collecting, and I think the boxes are also helpful for troubleshooting Detection Zone issues, particularly on static cameras.
Track Motion is what actually causes the camera to engage its motors to follow whatever it interprets as movement. Like I said, I don’t use the Pan Scan feature when I have Track Motion enabled. I like having Waypoints set in case I do want to use Pan Scan, but most of the time I have my Cam Pan v3s staring at (and returning to) their main “home” Waypoints where I believe the camera is most likely to capture and begin tracking motion, and that works well for my purposes.