Since a couple of days Ninjatrader 7 keeps throwing this error: Error OnMarketUpdate. The remote server returned an error. (400) Bad request.
I let my steategies stall and and even with floating open positions as I use NT unmanaged approach. I ran these strategies for months now, earlier versions for years. Suddenly these errors. Happened four times the last two sessions, which makes NT unreliable instantly. Can't find anything which is off from normal. Restarting NT doesn't solve it. And it seems random as I run four strategies at the moment and all got this error somewhere during the session, but never at the same time, while all strategies do exactly these same and trigger the same orders at the very same time.
Any idea where to look at? I run NT7 over Rithmic. As said, solid as a rock before. This errors are thers since this week.
Thank, F
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