1-2. school daze
3. the maud couple
4. fake it 'til you make it
5. grannies gone wild
6. surf and/or turf
7. horse play
8. the parent map
9. non-compete clause
10. the break up breakdown
11. molt down
12. marks for effort
13.
the mean 614. a matter of principals
15. the hearth's warming club
16. friendship university
17. the end in friend
18. yakity-sax
19. on the road to friendship
20. the washouts (episode)
21. a rockhoof and a hard place
Exactly, DALL-E 3 messes up cutie marks consistently. Pony Diffusion and its derivatives can actually generate accurate cutie marks, especially after inpainting.
I’m quite sure it was put there by OP. It looks like a vector, while the rest of the image isn’t.