Issue on my server.

Sandstone bricks don't craft into sandstone walls, but rather, into cracked stone brick walls

others as well, like cracked stone bricks become mycelium walls with black/purple no texture

Let me know what info you might need, if any, to look into this.

Make sure the client config is the same as the server, specifically the file "conf/BuildingBricks/material_ids.nbt"

Indeed, copied the file from the server to the client and all is well. Thank you.

Very nice mod, by the way

No problem, next version will warn about it if the files are different when a client connects.