On my Windows 10 machine (small computer, 4 cores, 4 GB RAM) Zorro crashes as soon as I trade more than 1 instance (1 in live mode, 1 in demo). It crashes more or less stochastic ally during every night leaving no error message in the log at all.

Any idea where to search? Antivirus already excluded as reason. No new strategy traded... Worked some weeks before.