Item/Monster/NPC world settings not saving

Hello everyone,
I wanted to make the game a bit harder by turning down the items and NPC spawn world settings and increase monster spawns but after the first save and quit I do the settings reset back to the standard world settings. I tried checking the worldoptions file and it seems that the settings are as I set them but when I enter any house or store there are clearly so many items that there is no way this is 0.20 item spawn.
Is there something I’m doing wrong or what?

Turns out it’s a known bug.

Have to adjust the settings after every load.