The system will 100% freeze up during video conference, video or heavy app usage and you will have to hard power down. NEW UPDATE: 4/08/20 – I am getting multiple reports that users are having issues applications that use Hardware Accelerated Video with the latest 10.14 and 10.13 2020-002 Security updates. 10.14.6 Update Causes a Kernel Panic When Using the Built-In FaceTime Camera.