I know this doesn’t really affect gameplay but if an immigration group of more than 10 arrives, they are all men. Every time. I’ve tested on multiple games for many in-game years lol. Figured I’d report it since it’s easy to miss since most people don’t look through every immigrant probably. Definitely not a major issue by any means though.
Edit: Today I noticed that as the immigrants marched toward the town (a group of 7 this time), there were some women in the group. Then as soon as I got the pop-up saying “7 villagers would like to join your town”, POOF they all turned into men. Magic!