It seems that the latest Mod Patch has caused it to stop working, which means that all blocks have been removed from game.
Not a problem for things like beds and tables, but is a major problem for things like Conveyor pipes.
May I make a suggestion, that if critical items like pipes are made (which I absolutely love the pipes in this mod), they are put in a mod of there own. That way should a change be made to a non critical item such as a bed, the mod is less likely to cause problems for other more important items.