Audio problem: In the extended Season 19 version of "Engine Roll Call," Henry's whistle sound is out of place as it can be heard during Emily's part of the song. Also, Henry is not mentioned in the Season 22 version of the song, but his whistle sound can still be heard.
Revealing mistake: Some of the team members of the football team are duplicated.
Audio problem: When Salty cries "Shiver me axles!" his lips don't match the words.
Factual error: Henry is derailed on his side, but no coal spilled out of his tender.
Answer: Breakdown trains help the engines back on track.