I'm making a mod that gives the cloning vats an upgrade. The upgrade becomes available with a technology. The upgrade works. But for some unknown reason, the biological pop assembly doesn't work. And I don't know why. When I go to the planetary pop growth screen, the area that says pop assembly says there are no available species to assemble. But, I don't know why? I've looked at the code, but nothings looks out of place. I assumed just having biological pop assembly provided by the building would work, but apparently not. Do anyone have any advice or clue. Because I'm stumped.