Discovered bug when testing "All symbols selected in MarketWatch" in the Strategy Tester, and a workaround

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If you have more than 12 parameters checked in the Inputs tab for optimization for any other type of optimization, then "All symbols selected in MarketWatch" won't work. It just starts and stops immediately with no errors. To resolve this, simply go back to any other type of optimization where you can see the checkboxes in the Inputs tab and make sure no more than 12 boxes are checked. Whether these boxes are checked or not should make actually make no difference to the "All symbols" test, but for whatever reason there's a bug where it does make a difference.
 
aaronpriest:
If you have more than 12 parameters checked in the Inputs tab for optimization for any other type of optimization, then "All symbols selected in MarketWatch" won't work. It just starts and stops immediately with no errors. To resolve this, simply go back to any other type of optimization where you can see the checkboxes in the Inputs tab and make sure no more than 12 boxes are checked. Whether these boxes are checked or not should make actually make no difference to the "All symbols" test, but for whatever reason there's a bug where it does make a difference.
You made my day ! Have been struggling for many hours now with similar problem. Was very puzzling.  3 years soon, and seems that bug is still in there ....
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