Captured Lord Coleem
During "Heart of gold" mission my workers captured Lord Coleem which should not be possible. Savegame. I picked him up from prison, dropped on my creatures, they killed him. But when I finished the mission I did not get "Nature's call" achievement and somehow unlocked "Together forever" achievement.
Game Version:
Steam Public
Platform:
Windows
This will require further review. Likely in the new year.