Try this article:
https://support.displaylink.com/knowledgebase/articles/1886413-how-to-enable-night-light-or-f-lux-on-displaylink

This isn't caused by f.lux. You need to do some digging to see what was installed and get rid of it.

Can you post f.lux options > driver info?

@herf That's the solution! Thanks!

Ok, I updated and restarted my comp and it's back! woo.

NVIDIA 27.21.14.5206: NVIDIA GeForce GTX 1070 (20200812)

Generic PnP Monitor, 575 x 323mm, built 2018
Chromaticities:
R=0.655273 0.325195
G=0.264648 0.583984
B=0.140625 0.131836
W=0.290039 0.328125
sRGB gamut: 90%, AdobeRGB gamut: 66%

Generic PnP Monitor, 531 x 299mm, built 2016
Chromaticities:
R=0.645508 0.330078
G=0.309570 0.617188
B=0.152344 0.073242
W=0.313477 0.329102
sRGB gamut: 99%, AdobeRGB gamut: 68%

Winlimit=0, 0
Monitor 1 on NVIDIA GeForce GTX 1070: VCGT=0 gamma=1
Monitor 2 on NVIDIA GeForce GTX 1070: VCGT=0 gamma=1

Windows Build: 19041.630

Turn off "Night light" in Windows. It's in Settings > System > Display. You'll find it at the very top.

Interesting stuff, I didn't know that. I can't find my laptop's lcd profile on the database, I will check QuickGamma for sure.
Thank you.

Sorry herf, I though that i'llreceive an email for answers...
So i look at driver info on tuesday because I'm not near the concern computer.
thank'you very much !

There is a detail view with three sliders, so you can adjust all the parts of the schedule at once.

But my recommendation is that you should reinstall just in case the resource files became corrupted.

Hi, this is not our doing - do you have any other software trying to change color settings?

Hey, could you help me to set them out?