Start new game of Transport Belt Madness Place down belts (observe count decreases) Click "Start level" Click "Back to building" Observe belts are still present in world, but inventory count is reset. This allows for an infinite number of belts to be used in the challenges.

Steps to reproduce: Select ghost cursor for any item not in your inventory (in my case, I did so by clicking on something in the hotbar that I didn't have) Open blueprint library (click or press 'b') Select blueprint (this applies to blueprints both inside and outside of books) (optionally, close th...