Help With a Monster

[Marche100]

Alright, I just started making my own custom story in Amnesia today, so forgive me if this sounds noobish, because it probably is. I'll post up some pictures to help along my explanation.

Picture is in spoilers because it's big.

Spoiler below!

Ok, so here's the situation. In the beginning of my story you go through that hallway, and the door with the monster inside it is locked. Then you head over to the room on the left and grab the lantern over where that 'area' box is. Then the monster spawns once you grab it, it breaks down the door to get out of its room, and it comes running along the line of node paths I set. You hide in the closet to wait while the monster leaves, then.

Everything goes perfectly until after the monster leaves. When the monster is done going around the node path, it just sort of hangs around and does nothing. It doesn't despawn. It usually heads back into the hallway to wait around, but occasionally it'll wait around in the room to the left, as well. I'm not sure why, but I want it to despawn, because otherwise you can't continue on through the story.

Any ideas on why it isn't despawning?