I read on the wiki that a colony will set its infrastructure (trade good) demand at 1.25 its current population to make room for growth. And for a time it worked for me, but now for some reason my Mercury has reached the maximum pop level its infrastructure allows and won't import anymore, as it seems to believe it's producing a surplus of infrastructure. Is there any way to fix this?
Just in case:
Mercury's population is about 15M, so way below planet capacity
Earth is producing plenty of infrastructure
Neither Mercury nor Earth are military restricted
There is no other colony that would gobble up all the infra produced on Earth