X5, by far the most common reason is that there are two datafeeds getting data on the same symbol. If I remember correctly, you had an issue with bid/ask that I also indicated was caused by multiple datafeeds.
Look on the status bar. It will show you all the datafeeds that are connected.
NOTE: TD Ameritrade STREAMER and TD Ameritrade Snapshot are considered two different datafeeds
Look on the status bar. It will show you all the datafeeds that are connected.
NOTE: TD Ameritrade STREAMER and TD Ameritrade Snapshot are considered two different datafeeds