Visible crew/equipment: In the observation lounge, you can see a shadow from a crew person on armrest of the chair on the bottom left of the screen. Hard to see, but definitely there.

Continuity: Worf says the Borg have locked on a tractor beam, but in the next exterior shot there is no tractor beam visible between the two ships. Later there is.

Audio problem: In Engineering when Worf says "Ensign.", Michael Dorn's lips don't move.