Continuity mistake: The blood Ashe smears on her face changes its pattern and consistency several times as the shots change. (00:36:00)
Winning Through Intimidation - S1-E15
Continuity mistake: Panik's Metal Guardian can be seen on the field several minutes before he actually plays it. (00:10:30 - 00:13:00)
Learning Curve: Part 1 - S1-E5
Continuity mistake: When the ship has made it through the plasma jump and is approaching the Universal Library, the images of the Watchers the ship passes by go from being transparent, to solid, and then back to transparent.