Hi @Matthieu_Oudeau,
Make sure you have enabled option Nonempty or Hide empty rows to see a list of those users that belong to the selected Team and have logged hours in the selected period.
You might want to use dimension “Logged by Team” to see logged hours by the team assigned to the user. On the other hand, dimension “Tempo Team” shows logged hours by the Team assigned to the issue. There are more details on available Tempo data: Tempo - eazyBI for Jira
Best,
Zane / support@eazyBI.com