Green Lines During FaceTime Calls (iOS 13.5.1)

Hi everyone,

When I am on FaceTime with my friends, my iPhone 11 Pro will randomly flash green lines (as shown below) for a brief second before switching back to the original display screen. It will occasionally do this throughout calls and is really distracting. Is anyone else having this issue? If so, how would I go about fixing it?

Someone else that I know has also experienced this issue with FaceTime as well, so help would be very much appreciated. Thank you!