Indoor Cam Pan & Tilt : incomprehensible motion detection and lack of logging

Hello,

I bought two models of Pan & Tilt, I’m currently testing them, so I’ve left home with the detection and alarm activated.

During my absence I had alerts via the iOS application and, once on site, after having deactivated the alarm, an alert every time I moved.

I don’t understand how I could have had alerts while I was away, nobody entered, and I don’t see an entry in the event log, neither in the Video section, nor in the Alert section.

Any ideas? Thank you!