Indeed... after a while the square was green again and they are independently working as usual.

But, what was that period of time where one of the instances was disconected? hmm, will keep an eye on it and report any other issue/effect i can see.

12.07.2019: this was a behaviour related to the new BarMode, specifically BR_LEISURE in combination BR_SLEEP and BR_LOGOFF. In this way Zorro trades only between StartMarket and EndMarket which by default are 9:30 to 16:00 only, and i was looking outside these hours. My intention with the script is also to trade longer times, so i need to modify my script again.