During the scene where Team Rocket watches Ash, his friends, and their Pokémon eating lunch, Serena's hat is shown on her head, but in the scene before, she had taken it off.
After Serena leaves her tent alongside Braixen and Pancham, she is shown walking out barefoot, but in the next frame, she is wearing sandals.
When Serena is talking to Eevee after she has finished performing the practice routine for her upcoming Showcase, the color on her dress, just above her blue ribbon, is briefly colored the same as the ribbon.
When Serena is going to rescue Eevee, Bonnie appears with five bangs on her forehead without her hairpin.
During the scene where Clemont is about to gear up his invention, his hairstyle is switched backwards.