for some reason the benchmark buy & hold index begins to plot on 11/17/99. Before this date it's at 0. Happens regardless of index (^GSPC, ^DJI, etc). Charting the index itself shows data exist for a lot longer than that. Has anyone encountered this before - is this a known issue? I'm using WLP 5.6.
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What about the dataset, the bar scale, the data loading range?
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for example: dataset ^GSPC, bar scale daily, data loading range 1/1/1970 to 1/1/2010. I noted that the issue is intermittent and happens when backtesting multiple symbols in portfolio mode
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