The goods are sold without a contract. (Tropico 6)

Actually, the question - as it should be or is it a bug? After the game release I decided to pass the mission, and for the second (Underground bar), I have accumulated rum in the port. The contract for the export of rum do not fall for the second consecutive year. Because of this, money went into negative. Before the release of the notice of such, but played in the sandbox and managed to adjust the economy and that money was for the broker to stimulate trading. By the way, boards are now sold though the contract for them is not present, not understanding the logic...