Acidburn, unfortunately I turned on Z1fx strategy only when I'm at my desk. Pls take into account what Jcl as already explained above: of course it is not so relevant but I also do not have at the moment open positions on Z1fx. I think it's all a result of market conditions.
As a confirmation of this you may consider that on my 2 other accounts running Z2 & Z2fx, 24/24, Zorro is not opening new positions since last week, just continuing to manage them.
At the beginning I had your same feeling, then with a little patience I verified that at the right time Zorro opens and closes positions independently. Trust me, have faith.