Unfortunately, the “fix” is to not assume a gui on a Mac and a Windows box will look the same. Different engines, (I’m assuming) different monitors, different graphics cards with different settings. Ask yourself 1 question, “why would they look the same?”
Go to your local big box store with the wall of TVs…which one is correct? Why is that one green, that one dark, and that one over saturated. (ok, they are probably all over saturated)
The “fix” is to use a properly calibrated broadcast monitor that does not care what OS platform you are using.
Once again, we need a sticky, or was offered in another question somewhere, a popup from blackmagic when no external hardware is detected. “Viewed color on a computer GUI are not intended to be accurate- calibrated external hardware is recommended”
Glenn