https://wccftech.com/pokemon-brilliant-diamond-shining-pearl-update-1-1-2/

Nintendo has rolled out Pokémon Brilliant Diamond and Pokémon Shining Pearl Update 1.1.2, offering various fixes.

Another patch for both versions of the remake has been released for the Nintendo Switch. Based on the official release notes, as supplied by Nintendo, the update appears to be a minor one with the notes only mentioning “some” fixes. According to Nintendo, the new update for Pokémon Brilliant Diamond and Pokémon Shining includes various fixes that will result in “more pleasant gameplay”.