Flashing screen when sun sets

[A Former User]

Hi there,

Just got myself a brand new Surface Book 2 and one of the first programs I installed was f.lux.

Now every evening when the sun sets the screen colors get warm, but at the same time the screen starts flashing between different color sets every second. What's going on?

All settings are default, for both Windows and the program (version 4.67)

Thanks

[A Former User]

Never mind.. found the reason: Windows Night Light turning on at the same time