Unhandled exception when close StrategyAnalyzer window.

[fx.practic]

Hello.

From today I start to receive error Unhandled exception: Object reference not set to an instance of an object. each time when I try to run backtest and each time I want close StrategyAnalyzer window.

Trace file:
2017-12-08 13:12:44:785|0|4|Unhandled exception: Object reference not set to an instance of an object.
2017-12-08 13:13:11:013|0|4|Unhandled exception: Object reference not set to an instance of an object.
2017-12-08 13:14:02:747|0|4|Unhandled exception: Object reference not set to an instance of an object.]

I excluded from compilation all last strategies - this not helps.

VisualStudio don't catch error.

Reinstalling NT8 not helps.

What can be the reason?
How to continue the investigation?

[fx.practic]

New workspace solved problem.

[NinjaTrader_PatrickH]

Hello fx.practic,

Thank you for your post.

I am glad to hear you were able to resolve this with a new workspace. May we review your log and trace files so we may investigate this error further?

Please send me your log and trace files so that I may look into what occurred. You can do this by going to the Control Center-> Help-> Email Support. Ensuring 'Log and Trace Files' is checked will include these files. This is checked by default.

Please list 'ATTN: Patrick H' in the subject line and reference this thread in the body of the email.

I look forward to your response.

[fx.practic]

Email sent.