I have 7 KC410S throughout my home.  3 work correctly.  4 keep changing their activity zone - every day.  It's almost like it follows motion, then when going back to it zone, it turns further than it's supposed to.  And it'50/50 on being too left vs right.  
I used to think it was having more than 1 activity zone causing it, so I eliminated all but 1.  That hasn't helped.  
 

I am really tired of resetting the cameras each day. (I usually use the pan & tilt correction).  
 

Suggestions?!