Hello @Tapolover 

• Please confirm the Tapo APP version and camera firmware are both up to date.
• Check motion detection settings here as thread below :  Case 1: Motion is not detected or Camera Alarm never being tripped 

https://community.tp-link.com/en/smart-home/forum/topic/271186

• If turn on camera Alarm, when person walks or enter activity zone, will camera alarm be triggered at that time? 

If the issue persist, can you help provide some information to help look into that further: 

1) the video clip showing the issue (use Tapo APP to manually record the video from Playback )

2) Do you use Motion Detection recording or Continuous recording, can I have photo of motion detection settings   including Recording Schedule, Activity Zone & Sensitivity 

3) Tapo APP version & Mac address of camera( please share MAC by  private message) 

Hello @Tapolover 

Thank you very much for more case details, to help analyze the issue can you help manually record a video showing the kid is not capture in Tapo APP-Playback and share the video/ video link?

How can I view 24-hour recordings of Tapo cameras in Tapo app?

When the motion happens in your circled area, will that motion trigger an Alarm? Can I have a picture of the Activity zone settings as well?

I will create a support email to follow up further , you could share in the email later as well. 

Hello @Tapolover 

That would be very helpful, I created a support email for your case TKID220130800, please check your inbox.

You could share the video link through Google Drive, or attach the video clip in the email.