MacRumors published a story that Apple has released a new watchOS update with a bug fix for FaceTime.
Apple Releases watchOS 6.2.1 With FaceTime Bug Fix
Apple today released watchOS 6.2.1, the seventh update to the watchOS 6 operating system that's designed to run on modern Apple Watch models....
Apple Releases watchOS 6.2.1 With FaceTime Bug Fix