Lackey does not display accented letters (like ?) in the deckbuilder (like in a card named "Enrique Mu?iz"), but adds that letters to the .dek files. If you load the .dek then these cards are omitted.
The new lackey does. The current one does not. As it says in the plugin tutorial, plugin makers are supposed to batch remove those non-standard characters, replacing ? with n for example.
I do generate the plugins out of a database of 2000+ cards. I try to catch all odd characters/diacritcs but then there are so many in some games that I'm really glad when Lackey will finally honor those.
Thanks so much for your great work!