I am having trouble getting the "Perfact Island" achievement to unlock on Galaxy. It fires properly in the game (got it on two profiles) and I got the achievement fine for 10 perfect islands, so I know I am doing things properly. However, it does not unlock for me in Galaxy. It must work sometimes or did previously since Galaxy stats show it has been done by 40+ percent of players.

Is there a fix for this by any chance?

Edit: fixed spelling error

i was about to confirm that it didn't worked for me as well, but started the game just to be sure that I got the achievement ingame. In the moment I started the game, the achievement unlocked in Galaxy. So maybe a restart of the game and/or Galaxy might do the trick for you as well.