Graph collection manager plugin does not display some relationships graphically

I have a collection tree view and a general collection, as you can see between the category and articles table there is a belongsto relationship but it is not indicated graphically.


<img width="3419" height="1718" alt="Image" src="https://github.com/user-attachments/assets/4a1ee637-4d74-4e9a-8d48-44dc14e83559" />