Thanks jcl.

To clarify, when reTraining a live strategy, where do the values for Spread, Commission, Roll, etc. come from? From the live Assets.csv? From AssetsFix.csv? From somewhere else?

The 2015 History files are not missing - but they are only the files from the install. The reTrain was trying to update one, but failed. Perhaps for more than I saw.

My process has been to Test and Train on a development machine, and Trade on a VPS. This means the VPS gets a vanilla install and nothing else - no run of Download, etc. So History isn't updated - until this reTrain was attempted. Would you suggest a different process?

Yes, I think producing a reTraining log is a useful update - it shouldn't be a "blind" process since it affects live Trading. Is this no log issue specific to Z12, or does reTraining never produce a log?

Thanks.