Feature Suggestion:
Factions stop selling you resources after you attack them
Just seems more realistic, and would make things slightly more difficult. The Market seems a little OP to me
I just opened the game again but suddenly all my population have disappeared. I had pops on all my planets, and food, but for some reason they're all gone now... don't really know what to do. Might have to restart and lose weeks of progress.
Of course this will be the natural extension of the market once diplomacy related features will come into the game (i hope soon!)