Usually this means you have two GPUs, and one of them isn't accepting color changes.

f.lux normally writes a color profile to handle this case - see information here:
https://justgetflux.com/news/2014/10/28/profile.html

Exactly what @TwoCables said.

@sierrafluxnoluv Call me clueless but how do I get into Flux to change the settings manually? Thank you. Gary

@terry Never mind. I just made Safari lie to your web site about my OS so it gave me the Snow Leopard Version, and that still runs on Mojave. I can see for myself those features do indeed exist in the older version. If this helps her. I'm sending you money, for sure!

We run applescript to adjust the dark theme every day. I am not sure how BetterTouchTool works, but we don't intentionally interact with it.

Ha! I'm not crazy so. Yeah I got the same problem too. Awwwwwwww.

Bedtime mode starts 9 hours before your set wake up time. So since you set it for 4:30 AM, you will see your Bedtime mode color temperature at 7:30 PM. The reason why it's 9 hours is, you want to begin avoiding blue light during the last couple of hours of your day before you go to sleep so that your melatonin production isn't interrupted.

If you don't want this, then set the Bedtime mode to be the same exact color temperature as your Daytime mode. That way, you won't notice Bedtime mode turning on. All you will see is the color temperature changing for Night mode. I don't use the automatic function of f.lux, but I used to years ago. If I recall correctly, I think Night mode starts about a half an hour before sunset, and finishes about a half an hour later.

Our "dim on disable" feature adjusts brightness - only on disable/enable.

Otherwise we never adjust it, and only macOS automatic brightness should affect it.