Certain settings won't changed when playing No sweat mode on iOS

[ErsatzHeart]

Hello, I wanted to have a more permanent world for one of my runs on the mobile version so I decided to start a game with the No Sweat mode on. However I wanted to keep certain settings such as grue attacks, starvation, hostile shadows, sanity audio/visuals, and freezing to remain on. But when I turn them all on (making sure that it says yes), the world still doesn't have grue attacks, hostile shadows, and the sanity audio/visuals on despite starvation and freezing still being a thing.

It worked for one world which I didn't keep because I forgot to change some other settings however for consecutive worlds made after, changing the settings does nothing. This is sorta frustrating since why is the option even there if I can't put them back on and it worked once.

I would like to know if this is a bug or if it's possible to do so in the first place.