Okay, never mind. I figured out how to show variables in the tester log.
fxD can be a treasure hunt as times ... ๐
I put this line into a Custom MQL code block and connected it after my Buy and Sell blocks ...
Print("***** T/P: " + v::TakeProfit + " S/L: " + v::StopLoss + " *****");
Stuff inside quotes is just text. Variables are prefixed with 'v::'. Constants would be prefixed with 'c::'
My code was occasionally setting stop loss to zero. ๐ Made a ton of funny money.