Hi, I have at the moment only 2 motion detectors. The alarm is disarmed and one detector isn't showing 'motion detected' as expected. However the other says 'Stopped detecting motion' at 17:36 then at 17:37 it says 'Motion detected' as I'm siting underneath it. Then nothing until exactly 16 minutes later it says 'Stopped detecting motion' the 60 seconds later exactly it says 'Motion detected' again. It does this all day long. Not sure if I need to delete it or something and re add. The other sensor shows no motion all day long yet someone is going past it several times per day. Very strange behaviour. Thanks in advance