Other mistake: In the end of the title sequence, Jessie walks outside. Before exiting, you can see that she is just a little bit taller than the doorway, but her head passes through the frame as she walks forwards.
Other mistake: In the intro Jessie's head is at the top of the elevator. Debby Ryan is only 5'6", but elevators are usually 7 to 8 feet tall.
The Talented Mr. Kipling - S1-E2
Other mistake: Probably throughout the show - but definitely in Season 1 EP 2 - the picture of Central Park West (?) as it sits shows the middle left turn lane arrow pointing the wrong direction. The arrow shows a turn that would cut across two lanes of traffic that you were traveling with to make the turn. It shows the turn arrow pointing across the oncoming traffic.