For the life of me I can't figure out how to turn nightshift off.
I can't do any video editing / photo processing!
I tried ticking Manual, which only turns it.... ON?
Am I missing something?
Are you certain you're seeing Night Shift, not just Auto-brightness, or even True Tone, which should also be off for calibrated colour work?
A quick workaround for anything that has a schedule you can't seem to get completely away from is to set it to work between e.g. 1 & 2am - so it's on but you're never using it at that time.