When Joel takes Abby a grilled cheese sandwich, he takes a bite, then she does as well. A cut later, the sandwich is whole on the plate.
There are clearly two babies used in the same scene for Rick and Alondra's son. The hair is noticeably different.
When Dan brings the ant spray over, the plunger changes position with each change of angle.
Joel says Santa Clarita just got its first Indian restaurant. There have been Indian restaurants in Santa Clarita for decades.
The supposedly 16th-century drawings have modern Serbian written on them which wouldn't have been used until the 19th century.