Other mistake: Loads of scratches are visible on Gordon in the last shot of him.
Other mistake: When Oliver leaves for the Works after his accident, Toad's eyebrows are missing.
Other mistake: In the first shot of Brendam Docks, there is a siding that is inaccessible from the other tracks.
Other mistake: The Breakdown Train to the left, in the opening scene, is derailed.
Other mistake: In the distant shot of Vicarstown, the station is missing its letters.
Snow Engine - S7-E14
Other mistake: Before Oliver crashes, no-one appears to be inside his cab in a shot of him passing a crossing.
Answer: Breakdown trains help the engines back on track.