After Toby stabs Blaine while filming "A Slice of Life", the director calls for a "reset" of the scene, so they may do a retake. Blaine completely removes his blue running jacket, and when the camera cuts to another angle, Blaine is seen to be removing his jacket again.
When Les and Toby enter the hotel to attend K'Harma's birthday party, Toby pushes the down button to call the elevator. This is obviously in error as they entered on the ground floor, and the room would be on a floor above them.