Feed The Beast

Hello, whenever I play a modpack I usually like to tweek things like mods, configs etc. I am currently playing FTB Endeavour and I was just made a material stonework factory (from industrial foregoing) for making sand when I noticed it's not making sand it's making white sand from byg (Oh the biomes you'll go). This isn't really a big issue, but still it's something I'd like to change. I have been looking around configs and trying to figure out where this recipe is created.
Does anyone else know why this is happening and if I can change it without breaking my game?