But... in at least two conditions this feature is beneficial: backfilling more bars just after configurations modify (whenever you enlarge 'number of bars to load' in File->Database Configurations dialog You must force backfill for symbols which were backfilled Formerly with smaller amount of bars) Selecting the best amibroker data feed https://augustlruvx.frewwebs.com/35632948/the-2-minute-rule-for-amibroker-data-feed