I realized I missed the void actually, and I thought OnStart/OnEnter/OnLeave weren't case sensitive?
Anyway this is what it now looks like, and it's still crashing - with the same error message - upon hitting the loading screen:
void OnStart()
{
AddEntityCollideCallback("Player", "PlayerCollide", "servant_grunt_1", true, 1);
}
void OnEnter()
void MachineryGruntPatrol(string &in asParent , string &in asChild , int alState)
{
SetEntityActive("servant_grunt_1", true);
AddEnemyPatrolNode("servant_grunt_1", "PathNodeArea_1", 1, "");
AddEnemyPatrolNode("servant_grunt_1", "PathNodeArea_2", 0, "");
AddEnemyPatrolNode("servant_grunt_1", "PathNodeArea_3", 0, "");
AddEnemyPatrolNode("servant_grunt_1", "PathNodeArea_4", 0, "");
AddEnemyPatrolNode("servant_grunt_1", "PathNodeArea_5", 0, "");
AddEnemyPatrolNode("servant_grunt_1", "PathNodeArea_6", 0, "");
AddEnemyPatrolNode("servant_grunt_1", "PathNodeArea_7", 0, "");
AddEnemyPatrolNode("servant_grunt_1", "PathNodeArea_8", 0, "");
AddEnemyPatrolNode("servant_grunt_1", "PathNodeArea_9", 0, "");
AddEnemyPatrolNode("servant_grunt_1", "PathNodeArea_10", 4, "");
}