Azure DevOps: Can not see all items in backlog

we use Scrum as the process in our Azure DevOps project.

when i am in the Backlog and have selected Epics I can see all my Items but when I switch to Features or Backlog items I can not see them all.

I am confused, is it a bug or am I doing something wrong

Thanks for your help Christian

Solution

Some feature items are not displayed when you switch to Features, this is because these items are owned by other teams.

From the document ,we can know that :

Items that are owned by other teams appear with an information icon,.

If you want to display these items, you need to switch to the corresponding team.

Below is my reproduction: