The latest release also got an article in PCGamesN https://www.pcgamesn.com/freecol/civilisation-like-free-game .
Yes apparently this was fixed in 2022. Author said:Last time I played FreeCol, I wasnt able to load a saved multiplayergame. Does that work now?
The issue has now been fixed. The old solution used the nation key for getting the ruler ... and got a translated version of the ruler name to be used as a username while connecting. That was really silly as it does not work in lots of different situations -- for example when playing using different languages. I have changed the solution into using the nation ID instead. As a bonus, the username is updated after connecting.