Just create a second LUT and apply it after the first one. It should not affect the behaviour of the first LUT unless it is modifying the same color, and if that is the case you want it to modify that color anyway. LUTs can be stacked, it’s pretty neat, and really easy in After Effects of Resolve.
I tried it, I cropped out just the yellow block and did a color match, and then apply it on top of the first LUT in photoshop, but the whole image turned greenish.
target:
reference:
result after global LUT + shoe LUt:
You shouldn’t just zoom on the yellow. You zoom around the yellow in both the test and reference frames with the same cropping, such that you keep as many of the other colors as possible. The algorithm cannot guess how you want the other colors to look, so you need to include them. There’s no guarantee it will work, because if you leave out one part of the frame, it may alter the unique colors of those parts as a conseqience of getting the correct yellow.