If you play on the 128x64 Earth Map and set one of the new world civs (Anasazi, Iroquois, Sioux or Maya - crashes are too annoying for me to find out which) as an AI, the game crashes on the start.
Probably the Anasazi since were only just added in 1.17. I would guess that they may not have a starting location set for that map. If so, then the Kongo (also new) might have the same problem.
Nope - I saw the Kongo.
I'm unable to replicate this on 1.18, so it seems like I fixed it whatever it was.