Hi   @Nygie 

Sorry for the delayed reply. If the camera is still with you, but AI detection or Motion Detection does not work, you can try some tips here: 

Motion Detection Is Not Working On TP-Link Camera

If the motion detection event is not triggered, please check the Sensitivity and more important a proper Detection zone is set. 

Update the device firmware & app to the latest as well. 

If this does not work, you may manually record a video clip of the motion, and share the motion detection log (evenlop icon) or Playback bar showing there was no motion detected, thank you.