In the episode Badfellas, Luke says Jessie is a bad singer although in this episode he clearly hears her sing beautifully.
When Bertram pops open his blue sweater, Emma says she swallowed a button however his sweater is zipper.
When Zuri is talking about getting her money back she has a hand covering the microphone but in the next scene her hand is gone.
You can't change someone's size in a picture without distorting the background, unless you have a more sophisticated photo editor. The app Emma had was clearly not professional.