@TekWarren 

Hi,
In this chart, the vertical axis indicates the number of times the camera was awakened. The event detection refers to actual recognized events detected by the camera, which can trigger alerts or recordings based on your settings, and the filtered events refer to the events that we excluded, potentially due to occurring outside the detection area or being classified as invalid movement, such as a tree swaying.

In this case, please refer to the tips in Part 2 of the instructions below to troubleshoot.
What to do if the Detection feature is not working on the TP-Link Camera?
 

If the same behavior persists, please provide the following information for further analysis.
  1. Go to the camera's Device Settings > Detection page, and send us a screenshot of the Detection page.
  2. You can go to the camera's live view page to manually record a video that shows there are motions, but can't be detected and recorded by the camera. Then, please download the video to your phone and send it to us.
You can upload the video to your cloud server (such as Google Drive) or YouTube, generate a download link, and send it to me (@Solla-topee) via a private message.
 
Best Regards

  @TekWarren 

Hi,
For the reported behavior, we recommend sending an email to forumsupport.usa@tp-link.com with the following information for further assistance:

Subject: [Forum Escalation][ID 841690] Tapo C400, events are not being detected

Forum Nickname: [User Provided]

Thread URL:  https://community.tp-link.com/us/smart-home/forum/topic/841690

Model&Version: [User Provided]

Description: [User Provided]
  1. A description of the phenomenon you experience.
  2. Please send the pictures in the thread, and a video showing there are motions, but can't be detected and recorded by the camera to forumsupport.usa@tp-link.com.

Once sent, a ticket will be created in our support system, and a member of the team will follow up to gather more information or troubleshoot the cause.

Best Regards