Indicator 'OrderFlow' Error on calling 'OnStateChange' method

[ArbTrader]

Attempting to access D2D Factory from non UI thread. Attention NinjaScript Developers: As of 8.0.19 we've found that this causes performance degradation, please search 'D2DFactory' in help guide for more information.

[NinjaTrader_BrandonH]

Hello ArbTrader,

Thanks for your notes.

So we may accurately assist, please answer all of the questions below.

• Are you creating a custom NinjaScript indicator or strategy that calls an Order Flow indicator's System Indicator Method in the custom script and are encountering an error?
  • System Indicator Methods: https://ninjatrader.com/support/help...indicators.htm
• Or, are you adding an Order Flow indicator that comes with NinjaTrader to a chart window?
• What Order Flow indicator are you referring to?
• What exactly does the full error message that you are seeing state?

We look forward to assisting further.