Thanks for testing! Some comments:

- Zorro forgets previous trades: Only trades from the previous version. Trades from the same version should be resumed - please check.

- Can't open Z12_13.par: yes, the file was indeed missing. We'll upload a new beta soon, until then you can get the missing file here: http://opserver.de/down/Z12_13.par (right click & save to the Data folder).

- Zorro should not touch Z12.trd unless you trade that strategy: Zorro doesn't agree. The .trd file contains more than trading.