Just watched the video again and see the ship going black at the 4sec mark, then quickly begin swinging right. At 14sec the lights come back on and at the same moment smoke begin pouring out of the stack indicating commencing going emergency astern.
Can engineer’s here say that can a large slowspeed diesel’s cam be shifted on a blacked out ship? If I remember correctly, air is used to shift the cam just before the engine is restarted.