Creations "forgetting" node graphs

I have a button that spawns mobs using the "Create Prefab" node, and they all have node graphs attached.

However, it seems that collision triggers, "when attacked" nodes, etc. only work on the first creature of that prefab ID spawned. Any mob from the second onwards just seems to forget that they have a node graph entirely. Is it because the game only reads the first entity as having a node graph, and more after that are treated as different entities? I'd appreciate some help on this.

As an aside, I'm also struggling with getting timers and "add unit status" nodes to fire that are linked to creatures' prefabs. I'm hoping this issue is the same one as above.