Hello,
It's me again ...
I built a database with 1-min bars going back to 2015, with two symbols (SPY and QQQ). After working with it for a few weeks I decided to extend the QQQ data back to 2010, by deleting the existing entry and importing again.
The new data displays correctly on a chart (all the way back to 2010), but for unknown reasons, exporation and backtesting start exactly at the same previous 2015 starting date (both with all data and from-to dates). I tried all the obvious remedies, from closing and reopening chart and analysis windows to restarting Amibroker, to no avail.
The other symbol, SPY is still in the database with the original 2015 starting date but I cannot imagine how this could be the source of the problem.
Strange, no idea what to do next.
Thanks for any help!
Robert
