Correct way to filter data

Hi everyone,

I have the following scheme :

I have a report page with graph for the project table and I want to filter this page with User's name.

I created a segment with User's name as value, but it did't work.

I manage to make it work by duplicating the name in UserProject, but I feel this is the wrong way to do it since I have set the relationships correctly so it must exist a way to do this without copying values.

Any hints ? :)