I had an issue where when I opened my cryptosleep caskets, the colonists were not my own and proceeded to leave the map. Leaving this here because I spent an hour trying to figure out why.

Turned out because I added a new race to my world as I was playing, I was "Faction_9", but on the new world, my colony was "Faction_10", simply changed every reference to Faction_9 in the ship save to Faction_10 and it fixed it.

I seen (at least) a similar problem mentioned on the forums without resolution, decided to leave this note if anyone has this problem, count how many factions are in your new world and see what faction it says your colonists are.