I tried the strategy you posted but it doesn’t work. I also downloaded a proveed strategy from Prorealcode but did’t work neither. The message I’m  getting is “There was en error during backtest [backtestname] execution. Click on Send button the send an email with technical details.” I did it but there was no answer from Prorealtime.

When I add a variable on variable section, the behavior is a bit different because in that case I got the optimization statemente screen but with no information and the same error message.

Thank for your help!