Hi, I started from a pre-steam save that comes before the choice and then played through the choice and beat it on skars. But I haven't gotten Dudley Do Right or Happily Ever After.
Is there just a bug that you need to start from scratch to get achievements? Or is there something stanger? That's a save file a bit further along.
You have to start over in the steam version on that mission. The code that triggers the achievement is in the CRPL, and if you start from a save you won't get the updated CRPL in the mission.