I am using the Moments Button on the Fairphone 6 for my flashlight, but it doesn’t work when the phone is sleeping.
If I switch the moments button when the screen is off, then I also have to wake the screen with the unlock button before it works. Can this be changed?
It’s courios. If screen ist locked I have to put switch down then up then the light goes on and down the light goes off. If screen is unlocked the way is vice versa.
Oddly enough, I can enable the flashlight with the switch without issue while the screen is off. So I guess it CAN be changed, but I have no idea what might be influencing things.
I’m using the Android version, perhaps you’re using the /e/OS version?
I am using the Android version as well.
Sometimes it does work after I’ve awaken the screen once. So if the phone has been sleeping for a while, then it doesn’t work and I have to wake the screen first.
I think the battery optimisation is killing it the flashlight mode for the button
I haven’t noticed a reversing switch but that could be, I often have to try a couple times. Might explain it 
I use the Android version with “Smart Launcher”.
Switch down enables flash light, switch up shuts flashlight down, doesn’t matter whether locked or unlocked.
It always works for me too, even with screen locked for a long time.
I have the exact same issue, very annoying.