As you may have already known, that hack has some stolen materials without permission.
Its author explains that he thought those materials are free to use because those patches are not “encrypted”. (Just in case you didnt know, “encryption” means game routine’s modification to disable FEBuilderGBA. Btw that’s why FEBuilderGBA cannot read his patch.)
He promises to delete all stolen materials in the next version (there is nothing he can do for distributed versions) and requires not to use materials in his patch either.
Update: He anounced that the negotiation was broken because of your discussion on FEU. (Idk what you talked here though.)