There is no market data to drive the simulation engine

[Atomic]

I get this occasionally but not for all symbols. The data is an external data feed. I can see there is market data in a market analyzer table.
Any suggestions on how to avoid this?

[NinjaTrader_Adrian]

Hello Atomic,
Thank you for your post.

Typically this error message means that either your data connection is not enabled for real time data for the instrument being traded or the order is being placed to an expired contract. Please either obtain data from a data provider or simply rollover to an active contract. If you need to roll over please follow these steps below to roll over the expiration date of a Futures contract:

• Navigate to the Control Center > Tools > Database window.
• Left-click the ‘Rollover’ button that appears just below the table under the ‘Rollover futures instruments’ section.
• Close this window when this process completes.

You can learn more about the different ways to rollover by visiting the link below:

• https://ninjatrader.com/support/helpGuides/nt8/en-us/rolling_over_a_futures_contrac.htm

Please let us know if we may be of further assistance.