As mentioned previously, the problem arises when I have a position open in the US stock 3M (All sessions), stock symbol: MMM.
Did the software team test that scenario? Before the market opens it has an unusually wide spread for a large market cap. stock. There are also occasional instances when the sell price for MMM is shown as $0.01 (it only lasts 1-2 seconds but the software error is reflected in the profit/loss total).