Unhandled exception: Object ref not set to an instance of an object

[rayko]

Hello Support,

I've received this error on the log with NT8.

To reproduce the error:

1. Use Strategy Analyzer to perform Walk Forward Optimization (see uploaded attachment parameter gif using Sample MA Crossover)
2. Close Strategy Analyzer
3. Open Strategy Analyzer
4. Select & double click to expand the Walk Forward Optimization you just did.
5. Right-click an "expanded" walk forward optimization iteration.
6. Choose "View Optimization Results" from the pop-up menu (the optimization results window does not open, yet no exception present on the log)
7. Click Run button to re-execute Walk Forward Optimization.
8. Bang! Exception window pops up with "Unhandled exception: Object reference not set to an instance of an object"

Note:
1. Menu item "View Optimization Results" works fine when viewing the results of an "immediate" execution that just finished.
2. The error only seems to happen when trying to view the results of a execution that happen in the past using a prior Strategy Analyzer window instance.
3. The ONLY way to clear the exception is the Re-Start Ninjatrader

This is a pain, since past optimization results need to be re-executed just so that I can access the details, not to mention restarted NT to clear the exception.

Please let me know what you find.

Thank you

[NinjaTrader_Kate]

Hello rayko,

Thank you for your post.

I was able to easily reproduce the error on my end following your instructions and will be reporting this error to our development team for them to look into. I will follow up with their findings when they have them.

Thanks in advance; I look forward to resolving this for you.