I have noticed some issues with the trade goods Infrastructure:
1) Neither Infrastructure or LG Infrastructure from Annual Production is added to the population. I. e. even if there is annual production , and a shortfall, the amount of infrastructure in population itself does not change.
2) While regular infrastructure is exported and traded by civies with priority over other trade goods, LG infrastructure does not seem to be traded at all. Even running a game with 10 LG colonies for several years, some with LG infra available for export, some demanding, no LG infrastructure was traded, but wine, plastics, etc. were.
3) May be bug or feature, but the only thing that seems to be affected by max pop size is growth %. At max pop growth is 0%, but if there is sufficient infrastructure, civies still drop off new colonists without problems, and there is no overcrowding penalty.
4) Minor feature/bug: It is possible to decrease the growth of a colony by adding orbital hab space.
Example:(say 100m orbital pop growing at 4. 31%) and a surface pop growing at 10%.
