Maintenance :: Regular Maintenance Scheduled Task Not Waking Computer

Having a problem with the Regular Maintenance waking the computer (Windows 8 on a Lenovo Q-190) to do its scheduled task as it's supposed to do. Here are the symptoms:

1. If I change the time for Scheduled Maintenance in the Action Center (Change Maintenance Settings), it WILL be reflected properly in the Properties of the Regular Maintenance Task in Task Scheduler.

2. However, if I check the box for "Allow scheduled maintenance to wake up my computer at the scheduled time" in the Action Center (Change Maintenance Settings), it WILL NOT reflect in the Properties of the Regular Maintenance Task in Task Schedular. Specially, I check the box to wake up my computer in the Action Center Maintenance Settings, but the corresponding checkmark is NOT reflected ("Wake the computer to run this task"), in the properties of the actual task in Task Scheduler.

3. I then put the checkmark directly in the Regular Maintenance Task itself ("Wake the computer to run this task"). However, at some point in the future, (not right away; I close and then reopen the task to make sure that it 'sticks'), the checkmark "disappears. Then, the task does not run at night while the computer is asleep, but runs in the morning when I wake the computer for regular use. At that point, the checkmark in the task is gone.