To verify this yourself, set a Workspace that includes several charts that have been set up as described above (I don't know if it will occur with only 1 chart - I have several set up in that configuration). Then save and close the Workspace.
Open Windows Explorer and note the size of the XML file for the Workspace. Then open, save, and close the same Workspace several times in NT. The self-duplication of indicators on a chart does not happen every time, but over the course of a few tries (it may take a few days if you only open and save once or twice a day as I do) you will see the XML size for the Workspace increase when NO changes or additions have been made to the charts.
Then open the Workspace in NT and go through the list of indicators on each chart - you should find at least one chart where a few indicators are being run twice or more when you never added them into the chart that way.
Obviously, the duplicated indicators negatively impact performance.
I would add that the Workspace displays no errors in the log tab when opening. It opens cleanly. It simply does not save properly on occasions and slows down the charting with the erroneous additions.
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