Trouble moving a task from the parking lot to the weekly wait list

So excited to find this program as the perfect hybrid of time management philosophies :)
When I choose  to "edit task" from the parking lot, I am offered the ability to "move to" another list. I have no problem moving the task around between lists in the parking lot, but nothing happens when I select the list that can be seen on the bottom right of the week view. If I reopen the task, (it has remained in the parking lot) even though the new list is displayed as its default, it doesn't move there. Thanks for the help!