Charticulator- report tooltip doesn't work properly

Hi All,

I've created a network graph with charticulator that connects people through events.

Each source node (called name) has two or more target node (called target_name) and events (links) as you can see from the image below.

To show every event and target node ,I've created a report tooltip but it doesn't work properly.

In fact, it shows, for each source node, only the first target node (first value) per event. 

What I want is to see every target_name per name and event. i.e:

How can I resolve?

Thak you!!