How to show all connection node in subset

I can show all connection nodes in source_name. However, I can not show all connection nodes in symptom_name. how to fix?
I want this show. This is an example in source_name

but i try in symptom_name. It fail

Feels like this query doesn’t return anything. Make sure the “symptom_name” exists. And also, make sure its direction. Maybe you can use reverse edges? As I see that the symptom node is a child in the first query, probably there’s no child - it is the end of the tree.

If you think it should return cuz you know there is something with this “symptom_name”. Share your schema and a sample of your data.