I need some help with two problems.

[A Tricky Carnie]

Okay, well my first problem is that I set my script for a level so when the player picks up a key, I want a brute to spawn, but it doesn't seem to work, so this is my script:

////////////////////////////
// Run when entering map
void OnEnter()
{
AddUseItemCallback("key_4", "locked_door1", "UsedKeyOnDoor", true);
SetEntityCallbackFunc("key_4", "OnPickup");
}
void UsedKeyOnDoor(string &in asItem, string &in asEntity)
{
SetSwingDoorLocked("locked_door1", false, true);
PlaySoundAtEntity("", "unlock_door.snt", "locked_door1", 0, false);
RemoveItem("key_1");
}
void OnPickup(string &in asEntity, string &in type)
{
SetEntityActive("servant_brute_1", true);
ShowEnemyPlayerPosition("servant_brute_1");
}

////////////////////////////
// Run when leaving map
void OnLeave()
{

}

And my other problem is that for whatever reason, monsters in my custom story slide, and I'd like to know to fix this.

Thanks in advance for any help.