Hey throwaway, don't know if I am explaining this correct or not.
Whatever data you see on the marketwatch is absolutely like NEST, probably it is a little better. If you are logged in, the data on your chart will match what you get on the marketwatch, so there is no question of wrong data.
What is not sorted is historical data, so if you login there might be a few candles missing from previous day or until you login for that day, which is because our data server is not in place yet. We have informed this to everyone. This should also be fixed very soon, but that doesn't require anything to be changed on the trading platform.