I've been having this for quite some time, it's really annoying. Every time after the PC has been in sleep and I wake it, F.lux has shut down, and not every time is it working to start it up again.

Driver info

NVIDIA 27.21.14.6109: NVIDIA GeForce RTX 3070 (20201231)

Generic PnP Monitor, 597 x 336mm, built 2020
Chromaticities:
R=0.651367 0.327148
G=0.291992 0.596680
B=0.148438 0.059570
W=0.313477 0.329102
sRGB gamut: 98%, AdobeRGB gamut: 65%

ASUS VG27A(DisplayPort), 597 x 336mm, built 2019
Chromaticities:
R=0.658203 0.333008
G=0.299805 0.626953
B=0.148438 0.056641
W=0.312500 0.328125
sRGB gamut: 100%, AdobeRGB gamut: 72%

Winlimit=0, 0
Monitor 1 on NVIDIA GeForce RTX 3070: VCGT=0 gamma=1
Monitor 2 on NVIDIA GeForce RTX 3070: VCGT=0 gamma=1

Windows Build: 19042.685

To disable manually I had to have my app open recently.

Like I wanted to disable for transistor and it was open but it didn't appear in the "disable" menu either, so I closed and reloaded it, and then it appeared in the "disable" menu.

Maybe try that

Did you ever get this fixed?

If not, can you tell us how did you use regedit to change the list? It's a great idea, I'd like to do that too!

Did you ever find a fix for this? It's happening to all my games, and it's driving me nuts.

Do you have Windows Night Light enabled? We recommend disabling it.

@herf Thanks - I've updated the driver but I'll look into bringing back the WacomLink into my setup - it's unfortunate to have to reintroduce those extra cables but it'll probably be worth it. Thanks again!

Argh I keep getting an error when trying to upload a screenshot. Both on chrome/firefox.
Here is the dropbox link of the driver info screenshot: https://www.dropbox.com/s/dkgg2wyuiz6rmno/Capture2.JPG?dl=0
As you can see by the colour of the driver info tab.. where as a week or so ago f.lux would correctly disable when using the windows snipping tool, now it actually goes to full dark/late night mode when I use it. So its like the reverse effect. Instead of disabling, it is going stronger in full screen!

EDIT: Ahh that option has indeed fixed it. Thanks so much herf :) I hope this post helps others with the same issue!! Cheers and happy new year

@TwoCables Thanks, I just changed my settings.

That's not how f.lux is used nor how it works. You just choose the color temperature or color setting that works the best for you. Beyond that, it's a good idea to lower your monitor's brightness by quite a bit at night in those final few hours before going to sleep.

@herf alt text