That's the thing - the problem is not with every world, with some. Around 20% of the worlds from my own games. And for the life of me don't get why tho, they all pretty close in job-housing-amenitiesI'm actually not seeing so many of those problems. In my current game -- for testing purposes I always play stock UNE --- the continental worlds are full of humans, plus some ocean-liking species. The desert fans migrated to the savanna worlds, and so forth.