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Date/Time: Tue, 17 Jun 2025 21:00:24 +0000



Post From: data Reset after update to latest version 2746

[2025-03-13 15:12:39]
John - SC Support - Posts: 40469
There is no reason for an update to have any effect on a study, unless that study was updated for some reason, which, even when it occurs, is always done in a way that the previous calculations are kept available. But there have not been any changes to the Bollinger Bands study recently, or for a long time. Therefore, there is no reason for there to be an issue with the results due to an update.

Additionally, there is no reason to see any difference in the loaded data with an update. At least, no more than would occur with any restart of the system (we wonder if this may be what you are seeing).

Keep in mind, Sierra Chart continually adds data to a chart and does not remove old data, regardless of how many days of data you have set to load, until there is a full recalculation of the chart, which typically would not occur unless you add a new study, or change a setting. When you restart Sierra Chart, this will also occur. So if your days to load is set low (say 1 day) but you do not typically restart the program, then you may have multiple days loaded and the Bollinger Bands were fine, but then when you updated, the charts reloaded to what is set for the settings.

Otherwise, we do not know why the amount of data would have changed after an update. But again, if you then need to load additional data, refer to the following:
Historical Intraday Data (Missing Data / Download Errors / Viewing More Data): Downloading/Viewing More Historical Intraday Data
For the most reliable, advanced, and zero cost futures order routing, use the Teton service:
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