As Steed is about to take his shot at snooker, his hand is on the table with the cue resting over his thumb. The shot changes and his hand is now on the table edge, index finger over cue.
In the long shot of Goff leaving prison, his right foot steps over and out first of the door in the gate but in the close up, it is the left foot first.
When Gambit is outside Purdey's flat, he examines the load in his revolver. The primers on each round are indented indicating that each round has been fired.
Kane spends the whole episode wearing gloves, yet is identified by one of his thumbprints, found on a Cybernaut's head.