Windows 10: Night Light settings reset at midnight and PC restart

My Night Light appears to reset when I restart my PC, or when the time passes midnight as it:Turns off the Night LightMy schedule night light settings get wiped to the defaultThis started happening sometime last week, definitely since the latest large update. I have Windows 10, and no pending updates.

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Night Light Settings

Night Light settings always reset after my computer is locked, no matter how long it is locked for. I have tried turning on and off night light settings, making sure the time and location are accurate, and the other suggested FAQ items, but it stays off. I have to restart the computer entirely for the night light to come back on. Please could you advise?

 

Night Light Setting and Third Monitor.

Hi Reagan,

We would like to ask you some questions in order assist you properly:

• Did Night light work previously on all three monitors?
• Have you made any recent changes to your PC?
• Are you getting an error message on the third monitor regarding Night light?
• Is the third monitor being detected by your PC?
• What troubleshooting steps have you performed so far?

While waiting for your response, we suggest that you try to connect your third monitor to what you are using on the 2 working monitors to see if it is only a loose connection issue.

Regards.

 

Night Light Settings

Separately from the Night Light, is the brightness options also disabled? If so, I might recommend these steps to make it work again:

1) Right-click Start button, choose Device Manager

2) Find the "monitors" section in the list and expand it

3) Right-click and uninstall every item listed under the monitors section

….. note: don't accidentally go to the "display adapter section", leave that one untouched.

4) Click the "scan for hardware" button on the toolbar up top (the icon with the magnifying glass inside it)

5) Try brightness and night light settings again