Strange happenings with certain light settings

[sangs]

At least once a day, and sometimes more, my Display Lights and LED Notification Light stop working. I go into settings and the button is set to "Off" for both, despite me never having changed the settings. I then switch them both back "On" and it eventually happens again. I've rebooted the phone in hopes of it correcting the issue, but no such luck. Any ideas?