Monster disappears after loop

[Romulator]

Now, let me say that I'm sure this is really simple and I have just done something silly in my code :3

Quite simply, there is a long corridor with a few rooms on each side allowing you to hide if you are quick enough to get inbetween each one. In this corridor, I have 12 pathnodes for 1 monster, which I want to continuously walk up and down the corridor.

I can get him to the 12th, then back to the 1st, but when he gets back to the 12th, he disappears.

This is my code:

Code: (Select All)

void OnStart()
    {
        AddEntityCollideCallback("Player", "ScriptArea_1", "monsterspawn", true, 1);
    }
void monsterspawn(string &in asParent, string &in asChild, int alState)
    {
    SetEntityActive("servant_grunt_1", true);
    AddEnemyPatrolNode("servant_grunt_1", "PathNodeArea_1", 2, "");
    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", 0, "");
    AddEnemyPatrolNode("servant_grunt_1", "PathNodeArea_11", 0, "");
    AddEnemyPatrolNode("servant_grunt_1", "PathNodeArea_12", 4, "");
    for (int i = 1; i < 13; i++)
            {
                AddEnemyPatrolNode("servant_grunt_1","PathNodeArea_"+i, 0, "");
            }
    }

Of course, I'm nowhere near finished on my CS, this is the first level xP but its not my first, and I'm always looking for improvement.