It's very difficult to find how to export Captions. It's ONLY available if you highlight the item in the Projects display window as a right click or from File > Export.
It is NOT available when the captions are highlighted in the Timeline.
It's greyed out as an Export option if you don't have this project item selected.
It is not available through the Media Export ... as you cant switch off Video and Photo.
- Can it be available and not greyed out if you have a caption track (if you had more than one caption tracks you could select one or export all)
- Can it be available as a Right Click from the Timeline?