At the 49 minute mark, Harry Pearce calls Zaf on an internal telephone and the view cuts to Harry's view out of his office window across the grid to where Zaf is. In the foreground, slightly out of focus can be seen Ruth Evershed at her desk despite the fact the character left the series three episodes earlier.
When Adam Carter meets Steven Paynton in the office building, Carter is wearing a tie. When Charles Lee shows the photographs of the meeting to David Newman, the Carter in the photo is not wearing a tie.
The team are shown watching the Mossad Agents moving through a building with thermal imaging from a satellite. Thermal images cannot penetrate a building roof.