I recently wanted to try out tick-based bars in my set-up and to create a chart with a few hours history, I connected to IQFeed, and then I connected to IB.
So I got my tick-based chart up-to-the-second with the previous few hours loaded.
I then disconnected IQFeed because I want to observe the bid/ask from IB.
This destabilised NT7. I have tried this 3 days now and it's too unstable.
When I try to reload a chart (while only connected to IB, after disconnecting from IQFeed) the chart disappears and it only shows 0 on the y-axis.
There are other little problems as well but that is the killer.
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