Audio problem: When Kenny begins rapping, you can actually see him open his mouth but nothing's actually coming out. (00:16:05)
Audio problem: In "The Robot", Gumball whimpers while his mouth is open. He whimpers again, and this whimper sounds like the first one, except his mouth is closed.
Audio problem: When Judy asks "But Grandpa, why didn't you tell us what was going on?" towards the end of the episode, she is speaking with Jane's voice.
Midori no chikyû wa makasetoke - S1-E2
Audio problem: In the hangar scene at the beginning, Goat is talking to Akito. Seiya Uribatake in the background is arguing with his fellow mechanical worker about the reparations to the Aestivalis. The conversation happens in the back of the hangar and it is meant to be strong background noise, annoying enough to prompt Goat's reaction, but in the English dub it is so strong that quite literally most of the main dialogue is nearly inaudible because of it. The dubber also adds a surprised/scared "waah" at the end when Goat cuts him off, but that is incredibly delayed compared to the reaction of the character on screen. (00:02:35)
Silence My Companion, My Death Destination - S1-E4
Audio problem: When Julia's daughter Rachel is saying "I'm a dork," she does so while puckering her lips and kissing Julia on the cheek. While it's possible to speak while your mouth is in that position, your voice will sound different than normal, and Rachel's voice sounds the same as usual. (00:07:58)
Cygnus! Hyogen no senshi - S1-E3
Audio problem: To satisfy his weird mother fetish, Hyoga dives with a rose in his mouth, but that does not prevent him from shouting his battle cry. (00:07:00)
Ranma o gekiai! Shintaisou no sukeban toujou - S1-E11
Audio problem: Kodachi grabs weapons from her locker and jumps in the night to go deal with Akane. She laughs maniacally but her mouth is shut. (00:07:55)
The Prison Prep School Murder Case File 3 - S1-E12
Audio problem: Someone "accidentally" drops an eraser, drawing the teacher's attention. It's a soft pencil eraser with no additional parts, but it falls with a clicking noise as if it were made of hard plastic. (00:08:30)
Audio problem: When Silver Surfer is attacking the Scourge of the Universe, he says "But so do I" with clenched teeth.
Audio problem: The officer is trying to force Bright to send out of the Gundam to break through the enemy forces. Kikka is singing, which makes him lose his temper. You can see though that when she supposedly sings her mouth is instead closed. (00:05:30)
Audio problem: When Toad is saying "Who are you calling a perp? This is messed up. You don't know who you're dealing with," his mouth movement is slightly out of sync with the dialogue. (00:01:00)
The Man They Called a Magician - S1-E2
Audio problem: Jigen shoots Pycal in the head with no results. He says that his gun is useless, but his lips don't move. (00:05:50)
Mind Your Mummy Mommy, Mario - S1-E3
Audio problem: When Queen Mushroomkhamen gets out of her case, her voice sounds as if she is still inside. (00:01:43)
The Creepy Heap from the Deep - S2-E8
Audio problem: When speaking about the hidden beauty parlor in the submarine Velma's voice comes from Daphne's mouth briefly.
Guilmon Comes Alive - Part 1 - S3-E1
Audio problem: When Jeri starts miming with her sock puppet, it is sometimes out of sync with her voice. It is most noticeable in the part where Takato has detention.
Failure Is Not a Factory-installed Option - S2-E3
Audio problem: Stan looks out the window whilst being suspended from work. As he looks he sees two people exiting their homes and they both say "Bye buddy" and "See ya pal." Their mouths don't move.
Doug's Big Catch / Doug Needs Money - S1-E9
Audio problem: Doug Needs Money: When Skeeter tells Doug that they have to replace Mr. Dink's grill before he finds out it's broken, as he says, "That grill was very expensive," his mouth stays closed until the word "very." (00:13:09)
Graduation Match: Part 1 - S1-E51
Audio problem: After Jaden and Zane shake hands and the duel starts, there is a wide shot of the arena where the students are heard cheering for them. But the students all appear to be sitting completely still and motionless, and their mouths don't move in any way. (00:06:35)
Audio problem: When Big Mouth is hit by a pie, the audio is unsynchronised. In the same shot, Big Mouth's body is missing. (00:05:28)
Audio problem: When Jonny and Hadji are in the boat waiting for Race' return, Bandit starts growling and barking, but Bandit is not grimacing or moving his mouth as he growls and barks.