не отправляется стоп-ордер

QuikTrader trader = (QuikTrader)connection.Trader;
trader.StartExport(new[] { trader.SecuritiesTable, trader.TradesTable, trader.DerivativePortfoliosTable,
			      trader.DerivativePositionsTable, trader.OrdersTable, trader.StopOrdersTable, trader.MyTradesTable });

private Order CreateStopOrder(OrderDirections direction, decimal price, decimal volume)
{
    return new Order
    {
        Type = OrderTypes.Conditional,
        Condition = new QuikOrderCondition
            {
                Type = QuikOrderConditionTypes.StopLimit,
                StopPrice = price,
            },
        Portfolio = this.Portfolio,
        Security = this.Security,
        Direction = direction,
        Price = direction == OrderDirections.Buy ? price + 300 * this.Security.MinStepPrice : price - 300 * this.Security.MinStepPrice,
        Volume = volume,
    };
}