Damien Darhk hands Lance the device (assumed to be some sort of USB device) to be plugged into a Federal computer. When the camera faces Darhk, the port on the device is pointed up in Darhk's hand. When the camera angle changes to show Lance, the port is pointed downward.
When Darhk proffers the server device to Lance, the plug flips from top to bottom of the device when the camera angle changes.
When Felicity sitting on the couch and Oliver entering the room (12:47) she is putting the phone in the right hand but in the next cut she is suddenly holding it in the left hand.
The second page of the dossier on Andrew Diggle is a document from a court case for Todd Masters. The form appears to acknowledge a failure to appear for a case in Providence, RI, in which Masters was a defendant. A Todd Masters is the president of the firm that provides special effects for Arrow and Flash.