Hello guys.
I'm demo trading Z2 on an Demo Oanda account with 2000 USD and 30:1 leverage. Yesterday I got the next message in my log files: XAU/USD: HP:L Skipped Margin 40 Min 169. I only have 3 positions opened currently and enough margin for any potential new trade(s).
Any inputs would be greatly appreciated.

Maybe cause of that...?

https://zorro-project.com/manual/en/mode.htm

MARGINLIMIT
Only when Margin is used for determining the trade volume: Don't enter a trade when even the minimum amount of 1 Lot exceeds twice the given Margin value. Also don't enter a new trade in [Trade] mode when the trade margin plus the trade risk exceeds the available margin left in the account. Trades skipped due to too-high risk or too-low account capital are indicated in the log. This flag has no effect in training mode or for phantom trades that are always executed regardless of the margin.

RISKLIMIT
Don't enter a trade when even with the minimum amount of 1 Lot, the trade risk is still higher than twice the than the allowed Risk. Also don't enter a new trade in [Trade] mode when the total risk of all open trades exceeds the available margin left in the account. Setting this flag can reduce profit, as trades with a high stop loss distance are often profitable trades. Trades skipped due to too-high risk or too-low account are indicated in the log. This flag has no effect in training mode or for phantom trades that are always executed regardless of the risk.

Thank you. Indeed when trying to open a new position for GOLD in Oanda, even for 1 unit, the pip value is high enough. Taking into account the fact that Gold moves are in order of hundreds and thousands of pips, it must be for the RISKLIMIT.