Welcome to the Family Part 2 - S2-E25
Revealing mistake: When the family releases Chloe's bubble ability for the last time in the episode the bubble machine is visible.
Upvote valid corrections to help move entries into the corrections section.
Suggested correction: There is no bubble machine visible.
Revealing mistake: When the house starts to shake and collapse the picture frames on the table don't move an inch, revealing that it's just the camera shaking.