Continuity mistake: When Rex pulls off the helmet of the disguised commando droid, Cody is missing the piece of armour protecting his right thigh. (00:09:37)
Revealing mistake: When Grievous falls to the ground as the Gungans throw plasma balls at him, the lance General Tarpals stuck through his torso blatantly clips through the ground. (00:15:03)
Continuity mistake: The opening scene after the narration shows the end of "Cargo of Doom" again, focusing on the clone troopers, but the details are different, including Anakin and Ahsoka disembarking the shuttle with R2 and some of the clones removing their helmets before leaving, when that didn't happen in the previous episode.
Audio problem: When Anakin says, "What? Uh-oh," his mouth does not move. He just looks shocked that his lightsaber could not cut The Zillo Beast.
Other mistake: Obi-Wan Kenobi discovers the Mandalorians and gets into a fist fight with them, punching one in the face a few times, who reacts with obvious discomfort. But the one hit is wearing Mandalorian armour, famously resistant to all kinds of weaponry, and Obi-Wan is barehanded! The Mandalorian should be laughing off his attempts. Not to mention that later he surprises another armed guard in Mandalorian armour and knocks him out with two barehanded blows to the helmet.
Suggested correction: It must be pointed out that unlike the Mandos he's fighting, Obi-Wan explicitly has supernatural powers, powers that most certainly help with things like punching out people in full armour. Seeing this as a "mistake" is kind of ridiculous in a space fantasy series.
Other mistake: When Cad Bane orders one of the commando droids disguised as a Senate Commando to finish clearing the platform, the neck area below the helmet shows human skin even though there's now a droid inside the armour. (00:02:07)
Continuity mistake: After the shuttle has crashed, there are four surviving clones accompanying Jar Jar. From the beginning of the fight with Turk Falso's group to when they escape out of the large geyser before it goes off, the number of clone troopers keeps fluctuating between four and three, before it stabilizes back to four when they go after the pirates. (00:10:34 - 00:12:03)
Continuity mistake: After Yoda cuts a hole in one of the droid battle vehicles, and throws the droid out, the following scene returns to Asajj and the Toydarian king. When their backs are shown, Asajj is standing close beside the king, but in the very next shot (showing them from the front), she is obviously a few feet farther from him. (00:17:08)
Old Friends Not Forgotten - S7-E9
Revealing mistake: When Anakin says to Obi-Wan that if they do things his way they can help the people in the city now, his hair is blowing in the wind, and the locks by his forehead are obviously clipping into his head. (00:02:42)
Continuity mistake: Satine and her guards along everyone else who entered the shuttle at the end of the episode disappear - you can easily see inside the shuttle and through the other window.
The Phantom Apprentice - S7-E10
Continuity mistake: Rex, escorting a captured Gar Saxon, is holding a pistol in his left hand when he stops because he sees where Ahsoka and Maul are fighting on the underside of the city dome. In the next shot, when he points at the fight and orders his men to get the gunships, he's holding a pistol in his right hand instead. (00:23:05)
Continuity mistake: When Obi-Wan duels Grievous on the bridge of his Arquitens cruiser, the cyborg General slashes up several computer consoles with some of his four lightsabers. Later, when Obi-Wan sends two clone officers to the bridge to try to detach the ship, the consoles are in the background with no visible damage.
Revealing mistake: When R7 goes to plug in to the socket to look up information on Fives, he moves right in front of one arm of a droid charging station in the room which should be in front of him. (00:16:32)
Revealing mistake: When the battle droid commander orders the tanks to stop because they can't go any further into the forest, the fingers of the droid nearest to the camera clip through the wall of its tank. (00:07:49)
Continuity mistake: When Ahsoka tells Rex to go to the briefing, the rectangular pouch thing attached to the right side of his breastplate is missing. (00:09:24)
The Phantom Apprentice - S7-E10
Continuity mistake: During Ahsoka and Maul's duel, just before she kicks him through a wall, he's pushing her down with his double-bladed lightsaber while she's resisting with her two lightsabers. In a shot from behind her, she has one blade on each side of the handle of his lightsaber, but a close-up of her shows both of her blades on the same side. (00:20:19)
Old Friends Not Forgotten - S7-E9
Continuity mistake: When Cody is telling Obi-Wan about the tactical droid remaining out of sight, the armour accessory he wears on his back is missing. (00:02:05)
Continuity mistake: Rex's kama is missing in a long shot of him and Ahsoka during the hangar bay firefight.
Continuity mistake: When Ahsoka runs out of the medical bay, Rex's kama is missing. (00:01:18)
Continuity mistake: Throughout the episode, clone troopers are wearing armor with four different types of markings; some have none, some bear the markings of the Coruscant Guard, some bear the markings of the 332d Company (Ahsoka's unit), and some bear the markings of the 501st Legion. However, at the end of the episode, the memorial in which clone trooper helmets are placed on their graves, only helmets with no markings and helmets with 332nd markings can be seen, none from the 501st Legion or Coruscant Guard.