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Desktop backtest UI stopped working

Up until 2-3 days ago, desktop backtesting was working.  Now it consistently returns the message "This backtest result is too large to be visualized in a web browser, please use this Link to download the raw result."  This happens with BasicTemplateFrameworkAlgorithm and unmodified LEAN.  

The URL (scrubbed of specific info) that returns this error:

https://www.quantconnect.com/terminal/embedded?user=<...>&token=<...>&pid=0&version=2.4.0.0&holdReady=1&bid=BasicTemplateFrameworkAlgorithm

Recognizing that desktop backtesting is no longer supported in present form, any insight would be appreciated.

Update Backtest







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Same issue here, I cant even download the data

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Hi Oleg and Changyu,

From your description, I believe you are using "backtesting-desktop" environment in Lean. Unfortunately, our current Desktop backtest UI is deprecated. Good news is, we are currently working on a version 2 built with Electron and will release it soon. Thanks for your support!

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The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.


Update Backtest





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The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.


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