Howdy Stevie Hyper B,
If you are not able to receive video using a FaceTime call, I would suggest that you troubleshoot using the steps in this article - Get help if you can't make or receive FaceTime calls.
In particular this section -
If your cellular connection or Wi-Fi network are running slow, or other users are streaming audio or video on the same Wi-Fi network, you might have these issues:
- Connection alerts or unable to connect
- Choppy video calls
- Black screen
- Dropped calls
Make sure that both you and the person that you're calling are using a fast Wi-Fi or cellular connection. If you’re using Wi-Fi, FaceTime requires a broadband connection.
Thanks for using Apple Support Communities.
Best to you.