The Night Dr. Loveless Died - S3-E4
Continuity mistake: In the opening scene, a cowboy sitting atop the balcony above Big Brad's Bar gets up and approaches the balcony's edge twice.
Continuity mistake: Arashi pulls over in the street where the research station is. The car stops a few meters after the turn, but when it's shown again, it's much further into the street. (00:06:15 - 00:06:50)