I think this machine has two GPUs, so f.lux is writing an ICC profile every so often to avoid flashing when switching between GPUs. Assuming that this profile causes problems in the new macOS, let's try disabling that:

https://justgetflux.com/news/2014/10/28/profile.html

What you can do, from Terminal:

defaults write org.herf.Flux disableProfile 1

@crishoj Could you try reinstalling from the homepage (https://justgetflux.com)? We shipped a newer version (but have not updated everyone yet)

I have the exact same problem and can't find anything that solves it. It has been doing it for a couple of days straight now and always starts 'late' at night (after 9/10)

We are working on a version with more than two settings so we had to pull this out for a bit.

For now adjusting the "sunset" setting to be a bit stronger may help. When the sun's up, dimming your screen shouldn't make as big a difference.

@herf

It appears only "About f.lux" and "Preferences..." menu items don't recognize clicking. The rest of drop-down menu items is OK.

You may want to take a look at the video screen-capture I uploaded to YT.

F.lux - menu items not responsive

Ok, thanks! When do you expect to add it (at a rough guess)?

Hi @2006hazelmurray, thanks for your comments. You got your message in the right place.

The f.lux icon should be at the very top of your computer screen in the Finder taskbar (not in Safari or Firefox), up by the clock. Assuming it's vanished from the taskbar, can you tell me if your screen is still changing color at night?

Pictures and general quickstart guide for reference here:
https://justgetflux.com/news/pages/macquickstart/

The automatic brightness feature back then may have required a reboot after disabling. (My memory is foggy...)

I had this same problem. The "writeProfile" suggestion in the link above did not work for me. But I discovered something that did:

Open the configuration for the VM Go to the Options tab Select the Full Screen section on the left Expand the Advanced Settings section on the right Uncheck "Use Windows gamma settings". (The VM will need to be closed for you to be able to change this setting.)

@herf -- since the link above mentions this problem in Parallels, any chance you could update it with this new solution?

Hope this is helpful!

@Randy-Pan We have replied to you by email regarding this. Please stop posting about this on unrelated threads and check your email - thanks.