Indeed. Here he is, there he's gone.
Must have been something he ate.
Heh... “The Commissar Vanishes”... the photo was doctored to remove someone else, behind Stalin’s right shoulder, if memory serves, and the short man who was removed later was Beria’s predecessor over the NKVD/KGB; also if memory serves, he remained in prison and wound up getting executed about the same time as Beria, some months after Stalin’s death.
The scene is a canal constructed at great cost in human life.