NinjaTrader 8 support instrument contract symbology format Numeric is supported by AFT8

The new version of NinjaTrader can change your instrument contract symbology to a different setting

Problem: Errors Unknown Instrument in the control center log for AFT8

AFT8 cannot understand some  of the format choices 

Solution: Set the Symbology to Numeric

• NT8 Control Center > Tools > Options > General > Symbology Display Style: Numeric
• Restart NinjaTrader 8

Related links

• https://support.ninjatrader.com/s/article/How-Can-I-Change-the-Contract-Symbology-on-My-NinjaTrader-Platforms?language=en_US