I've Seen the Light After Sartorius flips up his Knight of Pentacle, it shows his ATK at 1000 yet it should be his DEF because both images show a card underneath him, indicating Defense Position.
Curry Worries

The graphic for Curry Fiend Roux shows his DEF rising to 4300 not his ATK as shown for the right image.
Camaraderie Contest When Hassleberry takes more damage from Cyber Summon Blaster, his lifepoint meter reads 4000 before returning to the correct amount.
Even when it does calculate damage, the lifepoint meter reads 2800 instead of 2900.
No Pain No Game In the left image, Cyber End Dragon has the card art of Chimeratech Overdragon not his own like in the right image (although the right image makes it hard to see even at a larger sized image.)
Both versions show a card underneath Multiple Slime yet Mad Dog took damage after it was destroyed.
Homecoming Duel (2) Dreadmaster's DEF is shown to stop at only 2300 but they didn't account for not only the fact that the combined DEF of Diamond Dude and CT is 2400 and they forgot Defender altogether!
Dreadmaster's DEF still remains incorrect even after Captain Tenacious is destroyed.
The left image shows Archlord Zerato (second from right), not one of Jaden's cards and 2 Fusion Monsters that aren't Jaden's The right image has Air Hummingbird instead and the correct Neo-Spacian Fusion Monsters.
Obelisk White? Armed Dragon LV3's ATK is shown in a lifepoint meter instead of an ATK graphic, although it's partially obscured by the CN logo but you can see a gauge next to the 1200 in the left image. The right image is correct. 
Taken by Storm (2) The left image has Element Saurus' DEF shown when it should be his ATK as his DEF had already dropped earlier.  
Mirror Mirror (1) It looks like Doom Lord has 4 stars in the left image instead of 3 like in the right image.
Let's Make a Duel The left image shows that Reversal Quiz is the card's image but its supposed to be Question like in the right image.
Generation NeXt Familiar-Possessed - Hita's ATK is shown at 1840 in both versions when it should be 1850 as shown on the real card.
Rah! Rah! Ra! Ultimate Offering's card art wasn't edited properly in the left image. It should have the TCG version instead.
The left image shows Franz's LPs at 4000 when it should be 1200 like in the right image.
Art of the Duel

The right image shows Shining Flare Wingman at 3100 ATK but that's incorrect as they didn't account for Wildheart in Jaden's Graveyard. It should be 3400 ATK as shown for the left image (it actually shows 3375, but I couldn't capture his ATK at 3400.)

The Darkness Within The ATK of Red-Eyes Darkness Dragon is shown at 4900 when it should be 4600.
Pro-Dueling

Matmathica's LPs are shown to be 4000 in the left image but that cannot be true as he was never shown to have lost LPs at anytime beforehand. The right image is correct as far as I know since we never saw the start of the duel.

The top left image shows Doron's ATK at 500 but he's in Defense Mode. The right image is correct, although they don't show the words ATK or DEF. The bottom left and right images are a clarification of the top left and right images. Click for a better look. I would've made it so that you could get a better look at the bottom right image but even at full-size you cannot make out the card image.

The left images both show a Monster's ATK in a Life Point Meter (although you cannot see the ATK in the upper left image) and both should be in ATK meters.

Ultimate Destiny

Doom Lord is shown with 800 ATK in the left image but there's clearly a card underneath him in both versions (although in the right image is difficult to see). The right image is correct.

In the bottom left image, all 3 Monsters are shown with Dreadmaster (2200 ATK), Captain Tenacious (800 ATK), and Diamond Dude (1600 ATK) when it should show their DEF as they're all in Defense Mode as you can see their cards underneath each other. The bottom right image is correct. The top two images (with Aster's duel disk) are a clarification that Dreadmaster is in Defense Mode (the card on his duel disk).

Future Changes

Jaden brings back Neos with Silent Doom but the left image shows that he has 2000 ATK when it's supposed to be DEF like in the right image.

Primal Instinct Gilasaurus has been given a Normal Background  in the left image instead of an Effect Background as shown for the right image. 
Head in the Clouds (1) Z-Metal Tank is a Normal Monster in the left image! The right image is correct.
Chazz's Duel Disk in both versions shows XYZ-Dragon Cannon yet it should be VWXYZ- Dragon Catapult Cannon.
Head in the Clouds (2) Once again the dubbers show the art of XYZ-Dragon Cannon for VWXYZ-Dragon Catapult Cannon. You're going to need to click on the image to see the error. I didn't bother allowing for the right image to be seen bigger because the card's image is too small to see.
Win Mr. Stein's Duel (2) Burstinatrix's ATK is shown in a Life Point graphic in the left image instead of an ATK graphic.
Trapper Keeper (2) The left image shows Topaz Tiger's ATK in a Life Point graphic instead of an ATK graphic.
A Snake in the Grass (3)  Ojama Yellow is shown going to Jaden's Graveyard in the left image yet it should be Necro Gardna like in the right image because not only was it removed from his Graveyard later in the duel but Ojama Yellow isn't a card frequently used by Jaden.  
  Jaden brings back Sparkman and Polymerization with Fusion Recovery but Avian comes out of his Graveyard instead of Sparkman in the left image. The right image is correct.
Throughout the entre time that Darkbright's card art it's shown as Elemental Hero Magma Neos in the left images but as usual the right images show the correct art (I assume since the card's image is very small, even when enlarged.) I decided to only show two images since it would be tedious and annoying to show every scene with his card at as Magma Neos'.
Sparkman once more is shown with an orange background when it's a Normal Monster like in the right image. (I couldn't capture the light like in the left image due to the light disappearing when the card appeared in the same spot as the left image.)
Sub-Desert Duel Cobalt Eagle's ATK is shown in a Life Point meter instead of an ATK meter in the left image.