here are two screens showing that at social production 24 (new game, fresch install, no custom content)
the planet says that it will be completed in 2 turns whereas the planet list says 3 turns (the latter is true)
I would like at least a confirmation that this is on a "to be fixed later" list
thanks
how to reproduce :
-start a fresh new game, adjust sliders so that you get 24 social production on your lone planet, build something & check in the planet list
