How to remove expense report cards on expenses work area with status of paid older than 30 days

Some of my end users are seeing expense report cards on their Expense Home Page that were paid more than 30 days ago. I have read that these cards should no longer display on the Home Page after 30 days.

See attached for an example of what one end user is seeing. In this example, I understand that the one that was updated 28 days ago would still be displayed but the other three I would expect to no longer show.

Does anyone know why these would still be displayed and what can be done to remove them?

Thanks!

Jenn