Final Cut Pro X: "Sharing" so that subtitles are included
No matter what setting I am using, I cannot "share" (unfortunate word) a video that contains subtitles. I have created a movie, and imported captions (SRT file). It plays correctly within FCPX. When I "share" as Apple Device 720k, I have examined the "info" tab. The "Settings" tab as "save only" under action. Under "Roles" I have clicked on "Captions" and "burn in captions" and selected English (SRT). Now the Captions icon is blue. And I see "Burn In Captions" under the Video Track > All Video > Burn in Captions: English (SRT).
Then there is a captions section. I have attached a screen shot of the Roles as well as the movie. Why will this not export correctly? Thank you.