Interesting. Explain how that happens.
Markets have both buyers and sellers. Farmers growing corn or mining companies producing gold can sell their product NOW, before harvest time, and deliver that product when the settlement date arrives. Buyers wanting corn (Cereal producers) or gold can buy the product NOW, at today's price, and take delivery as of the settlement date. Selling Speculators, such as our government selling gold they don't have, must REVERSE their NOW action and buy contracts back (at whatever price it is at the time) on or before the settlement date.
I suspect that governments printing fiat money can get away with losses ... for a while.