Hey there, I tested the crafting recipe and it seems to be working fine on a freshly generated world. My guess is that there's something in your specific fortress setup that is messing with completion / assignment of the crafting job, and unfortunately I cannot help with debugging that.

Hey, my dwarves will be making tan sandstone (I specified as that is the only one I tested), but will stop mid-production (I am guessing?) and seek out other work. I don't have any other mods installed in that world other than Desert Sandstones, Grind Bones to Flux, Give Me Water, and I believe a mod that allows me to craft things in adventure mode. I have never seen dwarves do this, which leads me to believe it could've been an issue with the recent patches or something.

I love the idea of this mod and would love to use it in my current desert play through.