I don't know if that matters, but at gamestart I had the attached NPR options set. Not sure if I checked generate only non-TN races too. At least in SM "add NPR" it is not possible to spawn a non-TN NPR.
If that could be the problem, in what DB table do I find this setting ? (Ah, OK, "game" table). "GenerateNPRs" column is 1 and "GenerateNonTNOnly" is 0. Seems to be right I guess.
And another question: When gets the NPR generated. When I enter/explore a new jumpgate in "system view" or when someone actually enters the system ?