Can weekly tasks not gray out PLEASE?

Hello! When completing tasks in the weekly challenges, whenever the “remaining tasks” reaches zero…the tasks that are still visible gray out and can’t be completed… I get that “remaining tasks” probably includes those as well, but is it possible to still be able to complete those even if the “back-up tasks” reach zero? As in once those remaining tasks are completed, a replacement task will not populate? Please?

Thanks!