Hello, I recently purchased three C660 kits, within the past three weeks.  All are running the latest firmware, and limited trigger areas, to prevent nonstop notifications..  All cameras have four set viewpoints, with the first being what I leave the cameras set to, and will consider "home".  After detecting an event the camera will track, then should return to home, after the event ends.
 

I'll find one camera doesn't always return to the home viewpoint.  It will show several degrees off, zoned in on my neighbor's property.  If I try to view any of the other set viewpoints, it will show all at least 20° off.  They'll be facing the side of my house, or other random viewpoints , which I didn't save.  
 

I've tried:

- resetting these viewpoints numerous times
- pan/ tilt correction, many times
- rebooting the camera from the app

- deleting and reconfiguring the camera.  This solved the issue for about 48 hours.  The random home view will return around every 24 hours or so.  

It's odd that this issue is only afflicting one camera... the other two work flawlessly.  Should I assume this camera is defective, and needs to be returned?   I haven't tried turning motion tracking off, to see if it would keep the viewports correct, but it defeats the purpose of buying these cameras.

Any help is appreciated!

-Todd