I get this error:

QUOTE:
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Error in Visualizer: TabPage: {MAE/MFE}, removing.

Array dimensions exceeded supported range.
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OK
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When running:

CODE:
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It was run on SPY from 12/1/2015 to 12/18/2017 with Shares sizing. The strategy completes and then memory ramps from 40% to 100% in post processing. Eventually error message appears. Shutting down WL is the cleanest way to recover.

It runs with the first 2 trades and shuts down on the third. Add more trades if 3 works. I originally found this when there were 12 trades.

Running Windows 10 WLP 6.9.19.0

Please see the Wiki > Errors | Extensions, Other errors > Visualizer could not be loaded. Basically, an error in the data triggers a sort of an out of memory condition by topping the boundaries of an array.

Data looks good. Ran Robert's Bad History Data Check and there are no errors. Reloaded but it still occurs. Changed symbols and tried three different data sets from different providers and different dates. Restarted windows. Still happens in all cases. On 64 bit WLP.

I am able to run the trades when other trades are included but system goes out of memory with multiple trades on same dates and prices. How many trades is somewhat variable.

I cannot reproduce this altogether using Yahoo! EOD data and your settings. There are 3 trades, MAE/MFE graph looks correct.

So as not to disturb your workflow for now, try creating a new Windows account and launch Wealth-Lab Pro there. It will come without any bells and whistles (extensions, settings, strategies, data). Try the demo on Yahoo and Fidelity data and I'm sure it will work without a hitch at least on one of them.

Bottom line, there must be something else in play here and it may be specific to your machine.

This is the original number of trades. Also saw that once on GE when run with 3 trades it worked but after about 5 tries and adding more trades it failed too. Could be my computer. I can try the Windows account maybe over the holiday but please try with more trades and repeated executions.

Thanks for your help.

CODE:
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Neither repeated executions (of the new script on the new data range) nor change of symbol. Solid as a rock.

Thanks for checking. I'll try the new Windows user but since it is a carve out of an isolated trade and not happening to all I'm less concerned.

Hi,

I see. If you get to the bottom of this someday please let the forum know. :)