This is because IB feed was NOT designed as tick-by-tick and never ever intended to generate time&sales sequence, but rather only to update TWS display grid. The data plug-in relationship position is displayed while in the plugin position display spot situated in the lower proper Component of the AmiBroker https://amibroker-data20864.wizzardsblog.com/28938143/5-simple-statements-about-amibroker-data-feed-explained