Achievement message, which says "Achievement Icon Unlocked" despite not having the achievement before:
Achievement in the Stats tab, which does not even have a basic star:
Achievement information on the Wiki, which shows 6 completed biomes:
However, Volcanic Civilizer was only achieved on Micro:
Interestingly, the Standard Universe filter on the achievement tooltip suggests Eden being the problem, since it still shows Volcanic as completed but does not list Eden:
But it seems like the Volcanic one is more likely to be the actual problem.
Achievement message, which says "Achievement Icon Unlocked" despite not having the achievement before:
Achievement in the Stats tab, which does not even have a basic star:
Achievement information on the Wiki, which shows 6 completed biomes:
However, Volcanic Civilizer was only achieved on Micro:
Interestingly, the Standard Universe filter on the achievement tooltip suggests Eden being the problem, since it still shows Volcanic as completed but does not list Eden:
But it seems like the Volcanic one is more likely to be the actual problem.