1. TASKS doesn't automatically recognize the current date. It stays on the date you opened the page on. So if you leave it open, you have to reset it to work with the current date.
2. It doesn't recognize the current time either. It always starts at 8:00AM and you have to edit the box.
3. It shouldn't allow you to enter multiple tasks for the same time. It should say that time is already being used for a task and move down to the next one unless you override it.