Robert's (Patrick Dempsey's) hair throughout the film goes from a dark short haircut. to gray curly hair, to gray short hair, and back again. This could be due to a re-shoot since the film received negative feedback during a test screening in April 2022.
In the first movie, Morgan had brown eyes, but in this movie her eyes are blue.
During the "Love Power" scene, Nancy's eyes are blue in her animated form, but are brown in her human form.
During the animated scenes, Giselle's home is shown with the front window intact. However, in the first film, it was broken when the troll tried to grab Giselle.
One of the garden fairies refers to a toad as a reptile. Toads are amphibians.
Announcer on train mentions Grand Central Station. It has not been called that since 1960s. It is Grand Central Terminal.
Although the sequel was made 15 years later, the events in the movie take place only 10 years after the original. Morgan is six in the original movie, which would make her 16 in the sequel.