WhatsApp using my camera and microphone in the background

[Nonop]

Can someone please help me understand why WhatsApp is using my microphone and camera in the background? While I am not using the WhatsApp application, I repeatedly see the app notification appear without any new message or call. It flashes quickly.

[Nonop]

Here is the proof

[realaud]

You can out the app to sleep and it won't run in the background. It will still work, but updates and notifications may be delayed.