I can’t take live photo’s on facetime

Use FaceTime Live Photos

With iOS 12.1.4 and later, and iPadOS, you can capture moments with your friends and family using Live Photos during a FaceTime video call. Here's how:

1. Start a FaceTime video call. 
2. Tap the shutter button  to take a photo.
3. Go to your Photos app to find the photos you saved.

To save FaceTime Live Photos, all participants need iOS 12.1.4 or later, or iPadOS. Not all features of FaceTime Live Photos are available with earlier versions of iOS. FaceTime Live Photos doesn’t work with iOS 11.

Take a Live Photo in FaceTime on iPhone

• When you’re on a video call in the FaceTime app , you can take a FaceTime Live Photo to capture a moment of your conversation (not available in all countries or regions). The camera captures what happens just before and after you take the photo, including the audio, so you can see and hear it later just the way it happened.
• To take a FaceTime Live Photo, first make sure FaceTime Live Photos is turned on in Settings  > FaceTime, then do one of the following:
• On a call with one other person: Tap .
• On a Group FaceTime call: Tap the tile of the person you want to photograph, tap , then tap .

You both receive a notification that the photo was taken, and the Live Photo is saved in your Photos app.

Set up FaceTime for Live Photos

In the FaceTime app on your Mac, choose FaceTime > Preferences, then click Settings. Select the “Allow Live Photos to be captured during video calls” tick box.

Take a Live Photo in FaceTime on Mac - Apple Support