During the fight between Sark and Syd near the end of the episode, there is a situation where Sark is pushing down his weapon onto Sydney who is trying to withstand his pressure. During those shots the position of Sarks upper hand on the weapon changes from holding the stick to flathandedly pushing the stick, back and forth several times.
When Sydney and Jack are discussing Emily's knowledge of SD-6, the scene cuts to Sloane in his office. The back of his computer has no cables connected to it, therefore it could not be operational. The only cables visible are simply dangling from the monitor.