I saw a crash in 1.2.4 around fighting masklings, still trying to chase it down.
Migrants idle when they reach the settlement's influence range (the distance at which you can construct buildings). That influence range is based on population, and can get pretty big. Those idle migrants will stop idling as soon as they're assigned a task.
the migrant groups were outside the settlement range, they were idling in the masklings camp where they spawn (unless they overlapped)
Also sometimes migrants will get stuck travelling to a structure that is just on the other side of something ex: carry bricks to a wall but they walk up to the tower just in front of it instead of going around through the gate
Does that make sense? I often have to delete the structure, and retry but it can happen again, it's almost like I'm guessing if this can be built or not in this place E. Happens almost always with walls in corners that sorta thing
It's possible that a settlement's influence range expanded to a maskling camp, there's no cap on it currently.
As a performance optimization citizens will "give up" if they can't reach a destination or get closer to a destination after a thousand calculations or so. What's happening there is the citizens are getting "stuck" in a spot too far from a door.
