I'm editing a long form doc with hours of footage so being able to see dupe frames is crucial.
I had set it in the User Preferences and in the sequence settings, tried with a fresh sequence, tried renaming the clips but no joy...
Any ideas..? (working on OS 10.9.5,footage was shot on Cannon C100 with Ninja blade as an external recorder. Apple ProRess 422 dragged and dropped into a project)
Make sure the footage has REEL NUMBERS. Without those, FCP doesn't know it's from the same clip. Reel number and timecode are the main things for Duplicate Frames to be displayed. I know many external recorders that record directly to QT don't add reel number in the metadata.