I have recently downloaded the latest update on the Nintendo Switch (1.13.0) and there was a blue exclamation icon telling me to update existing world packs and texture packs (Chinese mythology, Greek mythology, Norse mythology, Fallout world, city texture pack, natural texture pack). I clicked on one of the worlds that needed to be updated but the update button will not work. It’s like it’s frozen. I checked my Internet connection to see if that was the issue but it was not. I also tried to update a different world but the same problem keeps reoccurring  and it will not allow me to play those world packs or texture packs unless they are updated. I have tried to redownload the software but it still doesn’t work. I’ve been trying everyday since the update but it still does not work