caption subtitles not visible after export
I added subtitles to my FCPX project using CEA -608. When I play the movie within FCPX project everything is OK and the subtitles visible. However sharing the file to Vimeo or export file, the subtitles do not appear visible.
The info settings tell me that the captions will be embedded in the videotrack.
But nothing appears in the QuickTime movie.
What do I wrong ?
Final Cut Pro X, macOS High Sierra (10.13.3), Mobile Me