White balance correction not available
I shot a clip (showing a color chart at the start) on a Nikon Z7 @ 4K at 60fps into an AtomOS Nija V recorder.
I imported the clip into an up-to-date Final Cut Pro X (on a 2018 Macbook Pro), got to a frame showing the color chart, selected color Inspector (Balance color option greyed out) and was unable to select the Balance Color tool.
Why was this option unavailable? Do I have a miss-match on my project settings to the clip?
Thanks