Night light off after screen wakes from sleep

I have the issue that night light is always off when my screen comes back from a (blank) screen saver or the PC wakes from sleep. This has been mentioned several times but the recommended solutions do no address this issue but the issue that night light is not working at all. So to clarify, night light is working, it is just off when the screen comes back from screen saver. If I then check the night light setting, it is enabled and the slider is in the correct position but I need to briefly click on the slider for the feature to actually come on again. This is rather annoying as I often work at night and need to do this several times a day then.

Is there a solution for this? And again, please do not post any links on "how to fix night light not working" because it is working. It is simply off after waking from screen saver.

BTW I am on an HP ZBOOK 15 G2 laptop with NVIDIA Quadro 1100M and Intel HD 4600 (which Windows has stopped with Code 43 - I tried many things including the usual driver roll-back/update/removing hardware and letting it autodetect again etc, but have not been able to resolved it, so I assume that the system uses the NVIDIA card only - on the latest drivers). I run WIN 10 Pro, ver 2004 and am using an external monitor AOC Q3277.

Thank you.