A few days ago cupertinos recognized the existence of problems with group calls FaceTime. Apple even temporarily limited the use of this feature. However, the problem needs to be solved in iOS 12.1.4, on which work is actively underway.
According to reports, because of an error in the group call users can hear and in some cases to see the caller before they answer. After a series of experiments the owners of Apple devices found that pressing the Power button the person you’re calling, included video. In the display you have displayed a screen with the confirmation or rejection of call.
According to information available online, now cupertinos finish testing new firmware which should bring with it a fix for a nasty bug in FaceTime.
Previously, Apple representatives promised that the update will be released before the end of the week. It is possible that the update will be available tonight.