I don't know why or how, but there is a complete mess if you try to match some english episodes with their spanish counterpart.

Some cases (among a lot others):

• Mystery dungeon team go getters: 00x72 in spanish and 00x10 in english, and that 00x10 in spanish is Pokémon Movie 10, but with the cover of Team Go-Getters

• Mastermind of Mirage pokemon: 00x78 in spanish, and 00x11 in english, and that 00x11 in spanish is Pokémon Movie 11, but with the cover of Mastermind

A mess.

Also the whole season in spanish is called "Películas" (Movies), and not all of the episodes listed there are movies.

I just hope the rest of the seasons are OK, since I organized my collection to match the episodes using the english titles as a guide, but ended up adding it in spanish since I saw it was available.

-- Edit --

Season 18 is messed up as well, since episode 30. Apparently in the spanish version of the episodes, 18x30 is missing (Lights! Camera! Pika!) so the following episodes are moved 1 slot up.

Also, there is an extra episode on the spanish version, listed as 18x45 "Temporada XY - Expediciones en Kalos" which I can't find anywhere else (Maybe 00x49)