The Academy - S3-E6
Plot hole: When Ahsoka rushes to save the students when they arrive to meet the prime minister, she attacks several secret police officers, who flee afterwards. However, we later see her standing next to the prime minister acting innocent when she pretends to side with him. The officers she fought earlier would no doubt have told Almec what side Ahsoka is really on, so her ploy never should have worked to begin with. (00:11:55 - 00:13:40)
Other mistake: Commander Jet does not hold the rank of "Captain", but he's addressed as such, just as many times as he's called by his proper rank.
Continuity mistake: This all takes place before Revenge of the Sith. Anakin is talking to a holo of a pregnant Padme, but he doesn't find out she's pregnant until he returns from rescuing the Chancellor in that film.
Suggested correction: Just because the audience noticed Padme is pregnant does not mean Anakin did.