I recently files these two issues:
"Historical data disappearing when connection active" - https://ninjatrader.com/support/foru...nection-active
TD Ameritrade seems to have new, very stingy limits on data requests now - https://ninjatrader.com/support/foru...a-requests-now
I believe that I have now confirmation that this is TDA-specific issue by turning off the TDA connection and letting an IB connection run with "Get data from server", in which case all of my historical data from 1999 to present reappears. It is a mystery to me why historical data should to be tied to specific connections in terms of what is loaded/shown on a chart, but that does seem to be the case. For now I guess I will not use TDA for historical data in any way since it makes my historical data not appear.
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