Sooo ... How does that trade route creation works? Because in the center of my empire is a waiting enigmatic fortress and that damn trade route system insists on sending all trade routes coming from the upper half of my empire through that system loosing all trade to the enigmatic fortress instead of creating a safer route through my systems around that leviathan which would a a 1 system longer route but through my space and not throwing all trade into a leviathan? Whats wrong with that system?