I had the error "Error 010: EUR/GBP invalid Lots: 2" while trading (1.50.6). It was a market order with Stop = 300*PIP. Could this error result on the asset missing in asset list? This is the only thing I can imagine.

Most likely, yes. If the asset is not in the list PIP could be zero, negative or undefined. All of this may lead to an invalid stop.

Ciao

I'm not sure if this concerns not only to simulation because I think while trading Zorro uses the Asset.csv that it created at trading start from the assets called in the strategy. But I'm confused with "invalid Lots: 2". What could be wrong with a "2" according to lots?

Saw this Error in my Zorro output this week. Its gone now as my PC rebooted. Would be interested in more color as if saw once will see again.

Saw the error again and checked my assetfix. it was missing instruments - I must have been working on it (though I am surprised zorro tried to trade asset not present in it)