Finally worked it all out, when any in-camera sharpening is used, the drone implements a noise reduction system that removes colour from the footage, mainly green. By reducing the sharpness below 1 in the custom profile settings it stops the noise reduction and then you can re-add sharpness in post. Along with that reset your camera settings too and make sure you shoot in d-cinaline

Finally worked it all out, when any in-camera sharpening is used, the drone implements a noise reduction system that removes colour from the footage, mainly green. By reducing the sharpness below 1 in the custom profile settings it stops the noise reduction and then you can re-add sharpness in post. Along with that reset your camera settings too and make sure you shoot in d-cinaline