Orders got rejected cause Sim101 suddenly with negative excess equity

[pstrusi]

Previous to any simulation, I set Initial cash to 10.000.000 and set all margin requirement to almost 0 in order to avoid problems. Still after a while I'm doing a simultaneous simulation with ES with just 1 contract ( e-mini ) suddenly, I began to have several rejections warnings, so I checked Sim101 and the excess equity went from 2.000.000 to aprox -2.000.000 ( in red ) I imagine that must be some corrupted file but this is happening even after a reinstallation of NT.

Any ideas?

[NinjaTrader_PatrickG]

You must reset the simulator for changes to be applied. Resetting a simulation account will clear all historical trade data from this account. Please follow the instructions below to reset a simulation account. (This can take longer depending on the size of your database file and your system.)

• From the NinjaTrader Control Center window select the menu Tools> Options> Simulator.
• Press the 'Reset' button.

[pstrusi]

Already done that several times, eventually it will repeat the issue.
I just reset to 100 millions cash and reset once again
Thanks anyway

[NinjaTrader_PatrickG]

If the issue persists, I would suggest a reset of the database (This can take longer depending on the size of your database file and your system).

The following data will be removed.

• Historical orders.
• Historical executions.
• Historical ATM strategy data.
• Saved Strategy Analyzer backtest results.

The following data will be maintained.

• ATM strategy templates.
• Historical chart data.

Follow these steps:

• Disconnect NinjaTrader from any open connections via File > Disconnect.
• From the NinjaTrader Control Center window select the menu Tools > Options.
• Select the 'Data' tab.
• Press the 'Reset DB' button.
• Press the 'OK' button.

[pstrusi]

Yes, some file must be very corrupted, even the position tab gives no info at all when there are 4 simultaneous same short positions.
I'll do what you suggest.
Thanks

[pstrusi]

Hi Patrick,

I decided to do a complete clean reinstall of Ninjatrade 7. When I activated once again a simulation ( sim101 ) only trading with ES, it just worked fine, but when I add another simulation with another instrument, like $EURUSD ( EUR/USD ) then, eventually in few minutes, it began with this weird issue of :

"12/13/2018 10:56:03 AM|0|32|IBpiers, Order has exceeded available account equity: Please reduce order size affected Order: Buy 1 Limit @ 2651.25 " but then you check the account sim101 and you have 5 million cash excess equity, and you don't any more info or warning message.....so, I suspect some bug there.

Any ideas to be able to run multi-instrument simulation avoiding this issue?

[NinjaTrader_PatrickG]

Ah, yes - the key is trading to multiple asset classes in Sim101. Can you reproduce this issue if you connect to the forex data feed first and begin trading forex first?

[pstrusi]

Well, then good to be aware that the problem is cause some bug. This was driving me nuts dissecting my code looking for errors.

Does Dev's team contemplate to fix it ? I must say that Ninjatrader 7 is a beast, fast and capable of heavy work, I hope you don't ditch it fast.

[NinjaTrader_PatrickG]

Unfortunately this will not be addressed in NinjaTrader 7. All of our developmental efforts are focused on NinjaTrader 8. This does not occur in NinjaTrader 8.