On the curse page it says

"Optionally appear in world generation (disabled by default)"

But when i install in 1.12 a fresh copy it makes a new config file with

D:"Generate in Villages"=1.0

Further i actually made a world without config changes and found the sandstone generation in a village.

Personally this works for me since I wanted to turn this anyway. So either the curse page is wrong, or theres a bug where it defaults on and you meant to default it to "0.0"

The CurseForge page was outdated, the world generation is enabled by default starting in 1.12.

Did you get a sandstone waystone in a non-desert village, and if so, did that happen on v4.0.11 or higher?

My sandstone gen was in a Spruce forest village. Thanks for the fixes

I have something funny for you related to this.

3 Sandstone Waystones in a non-desert village.
Minecraft 1.12 and Waystones 4.0.12

The names of those say "Plains" though.

Thanks, I opened up new issues for those two things: #47 #48