Sometimes when I am working with images with a Color Lookup layer, when I run an action that includes a step to Flatten the image, the colors change radically. I tried changing the Flatten step to a Merge Down, it keeps the colors...except, if the next step is a sharpen, they still shift. If I go back and review the action steps, the Merge Down also changes the colors, but if I go back to the beginning, and just manually Merge Down, the color do not shift! If I then Sharpen (Smart Sharpen), they do shift, but if I undo the Smart Sharpen step, the colors are still shifted.
I am a bit stumped, as I cannot see why sometimes Flattening/Merging
the image changes the colors, while most times it does not. I also can’t figure
out why undoing the last step does not totally undo the step- undoing a sharpen
step leaves the color changed when I would expect it to return the color to
what it was before that step.