Sliders for multiple screens get misaligned over time

[Rhaston]

I have the setting to move sliders for all screens in unison turned on but sometimes I notice that one screen (seemingly mostly if not always it's the built-in Laptop Display) starts lagging behind. I have Twinkle Tray set to adjust brightness in increments of 5 and sometimes the screen in question would be the entire increment (or multiple increments) behind (like one screen at 60% and the other one at 50%) but at other times it's more gradual like in the attached screenshot where the difference is only 1 or 2% (the gap increases over time) which is weird as it's only supposed to move in increments of 5.
I can reproduce this just by normal prolonged usage but I think it might be specific to my setup. I am using custom range for the screens to normalize the maximum and minimum brightness so I guess that might be causing some interference with values? The internal laptop screen also uses a different protocol (not DDC/CI) than the external monitor so maybe that's causing the issue too.