Before Continuing:

• Check you are using the latest version of the mods and its dependencies
• Always include a latest.log if you are crashing
• Remove mod that enhances Minecraft: Optifine, Sodium, others. The issue persists.
• If you are unsure which mod is the culprit.
  Disable all of your mods and enable them 1-2 mods each time to isolate the culprit
• Confirm that there is no existing issue with a similar description submitted in the list of issues.

Version

1.20.1-FORGE

Supplementaries Version

supplementaries-1.20-3.1.24

Moonlight Lib Version

moonlight-1.20-2.13.81-forge

Describe Issue

This is not crashing bug, but because of suspicous sand recipe enabled by default a lot of recipes that relate on single sand block and any item makes for example create sandpaper recipe broken unless used polymorph. Is it possible to make change in default config and set suspicious sand recipe to false? It took me two days to find which mod add recipe for sus sand, even kubejs recipe remove didn't work unless config changed.

It's a recipe just like any other. As such that can all be removed and tweaked with Datapack.
Also the config allows to disable it like any other supplementaries feature. If you are implying that I should disable the feature by default why would I ever want to do that?
Having recipe conflicts is normal in modded. That's why mods like polymorph exist. This is not a bug