Apologies - that was my misunderstanding!
I’ve just tried this with a few outstanding invoices, and it seems to be working as expected.
When the screen loads, they’re in ascending order (0 days, 1 day, 3 days, 7 days etc.), and clicking the “Overdue” heading does reverse this order.
Does this not work for you? If not, what web browser are you using? Does anything happen when you click on the “Overdue” heading?