1:16 - Discord's beard disappears for a few frames (May not be legit)

1:53 - Just before Rarity kicks AJ, AJ's neck pops out from behind her mane.

	Also, Rarity is a blank flank for exactly one frame

1:58 - Rarity's right hind leg is disjointed for 2 frames (happens once more at 1:59)

2:16 - Discord's giant tooth is mirrored

2:40 - Discord's head is mirrored. It's still mirrored when they teleport back into the present.

2:48 - Even though it's a profile shot, I can tell the mirrored head from the dragon horn being over the deer horn

2:51 - The left hand is disjointed

3:25 - Doubled eyelashes on Twi's left eye

3:36 - Random Angel-look-alike appears from behind the 3rd one

3:39 - Twi's cutie mark is on her hind knee

3:49 - AJ's freckles are missing

3:52 - AJ's flank is blank(Maybe)

3:54 - 4:02 - Knee cutie mark for Twi once again

4:03 - Discord's head is mirrored - it stays mirrored until 4:13, even when he makes a head turn

4:55 - Twi's upper eyelashes disappear

4:58 - The purple flower bed Fluttershy is about to stomp on disappears for 1 frame

5:09 - Rarity's body disjoints in several areas here.

6:16 - AJ's freckles are missing

6:31 - Spike grabs onto the back "side" of the book, but it comes out with him handling the other end.

8:00~ - While Spike and Twilight are walking together (and Spike is saying "Aren't you forgetting somepony?), Twilight's walk animation loops improperly.

8:54 - Twilight's library looks empty

9:25 - Discord's head is mirrored. It's still mirrored at 9:43

9:32 - Pinkie Pie has a duplicate of Fluttershy's necklace.

10:08 - Fluttershy is flying with a single wing

10:28 - Fluttershy's tail is missing

11:22 - Mirrored Discord head

12:49 - Twilight's horn stops sparkling for a few frames

13:57 - Twi's horn is angled incorrectly. It remains that way until 14:01

15:07 - Rarity's horn appears to be missing

*16:48 - Check for passengers on balloon

16:56 - AJ's rope is fully layered over RD on 1 frame, suggesting that she missed her completely.

17:07 - The second half of RD's mane is missing. It's like that in most of the shots after this one, actually.

17:36 - RD's a blank flank

18:01 - The transition makes the rope on Rainbow Dash instantly disappear.

18:54 - Pinkie has an eye glitch

19:07 - Twi's horn is ridiculously high angled once again.

19:12 - AJ lost her necklace. Her eyeshape is also that of a unicorn's.

19:20 - AJ has double eyelashes

20:23 - RD's wing is layered under her right foreleg. Moreover, she has one butterfly on her cutie mark for some reason.

*20:43 - On the far right is a pony with derp eyes (not Derpy)

20:48 - On 1 frame, AJ's mane is slightly disjointed.

20:49 - Rarity loses all eyelashes, including basic outlines. Cute in a creepy way.